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Doctor insights on: Longest Human Gestation

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What is the range of normal gestation for humans?

What is the range of normal gestation for humans?

Average 280 days.: Average normal gestation for humans is 280 days, but may range from 259 days to 294 days. ...Read more

Dr. Stephen Scholand
4 doctors shared insights

Pregnancy (Definition)

When your due date arrives, you will be more than ready to have your baby! Most women deliver the baby somewhere between 37 and 42 weeks. According to the American College of Obstetricians and Gynecologists, only 5% of babies arrive on the exact due date. Approximately 7% of babies are not delivered by 42 weeks, and when that happens, it is referred to ...Read more


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What individual fetal measurement holds accuracy (represents true gestational age) longest in pregnancy (fl, ac, bpd, hc)?

What individual fetal measurement holds accuracy (represents true gestational age) longest in pregnancy (fl, ac, bpd, hc)?

Must use averages: I don't believe that any single measurement is most accurate throughout pregnancy. It is usually the averages that are taken. The most accurate measurements are actually in the first trimester in the way of the crown rump length in terms of predicting the estimated date of delivery. ...Read more

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Human chronic gonadotophins in pregnancy?

Human chronic gonadotophins in pregnancy?

Question?: Not sure what the question is. Human Chorionic Gonadotropin (HCG) is the hormone produced after implantation. It is the hormone detected on a pregnancy test and is sometimes monitored to determine the viability of a pregnancy that is in questions. I hope that helps-- if that isn't what your looking for, let me know. ...Read more

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What are safe home deworming remedies during pregnancy in humans?

What are safe home deworming remedies during pregnancy in humans?

Please your doctor.: This is one time when i think it would be better to use medicinals. Many herbals and supplements don't have consistent concentrations/ dosages. ...Read more

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From the date of sex, how long is the longest it would take to show positive for a pregnancy test?

From the date of sex, how long is the longest it would take to show positive for a pregnancy test?

2-3 weeks: We recommend waiting until you miss your period. If you miss your period then check a home pregnancy test. Consider starting birth control to avoid these scares if you are not trying to get pregnant at this time. ...Read more

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Whats the longest a girl can go without feeling any symptoms of pregnancy?

Hard to say: I have known of some that went into labor that swore they never knew they were pregnant. ...Read more

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2 months pregnancy aborted by pills is not killing life because the fertilised egg doesn't take its human form yet.Is it true?

2 months pregnancy aborted by pills is not killing life because the fertilised egg doesn't take its human form yet.Is it true?

Existential question: In fact the embryo is already forming at two months - however it is completely dependent on maternal support for survival. We have no evidence it has any degree of consciousness nor pain level until 23-24 weeks. Please discuss with your gynecologist the option of early medical termination of pregnancy to establish if it is the best for your circumstances. Best of luck with this hard decision. ...Read more

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Through my whole pregnancy I drunk whole mulk and was constipated for the longest time, why?

Through my whole pregnancy I drunk whole mulk and was constipated for the longest time, why?

What else do you eat: Whole milk is high in fat, fat slows down stomach emptying, and bowels. Prenatal vitamins are high in calcium and iron-both can be constipating. What else did you eat? Need more fluid, fruits, veggies, whole grains during pregnancy; beans help too (may be too gassy for some). Hormonal changes in pregnancy affect bowel function too.. ...Read more

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Today is cd 34. Longest cycle I've ever had was 32days. 2 negative pregnancy tests, no sign of period coming. What's going on ?

Today is cd 34. Longest cycle I've ever had was 32days. 2 negative pregnancy tests, no sign of period coming. What's going on ?

Hormonal imbalance: You may repeat the pregnancy test in 4-5 days if you do not get a period by then. Use first morning urine and follow the instructions for the test carefully. Menstrual irregularities are not uncommon and anovulatory cycle is a common cause. If you miss more than two periods it would be time to see your doctor. If you do not wish to be pregnant, use contraception all the time. You may consider implanted contraceptive or an IUD. Consult this site for more information on this topic. http://www.nichd.nih.gov/health/topics/menstruation/conditioninfo/Pages/causes.aspx Practice safe sex. ...Read more

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What fetal measurement on ultrasound holds accuracy the longest in pregnancy?

What fetal measurement on ultrasound holds accuracy the longest in pregnancy?

Typically the first: The ultrasounds performed in the first trimester I have the most accuracy and will hold the accuracy throughout the pregnancy. That is unless there are developmental problems during the course of the pregnancy. The error range for first trimester ultrasound is plus or -5 days. This can extend to several weeks during the third trimester. ...Read more

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Which stage in human fertilisation/conception/pregnancy period does susceptibility to environmental factors that may contribute/cause defects start?

Which stage in human fertilisation/conception/pregnancy period does susceptibility to environmental factors that may contribute/cause defects start?

Before conception: The woman is born with all the eggs she will ever have and they mature over her lifetime until either released or lost.All exposure to chemicals/radiation/illnesses during a woman's life impact the egg quality.Once released to conception, the environmental influences on outcome are continuous.Some are time specific (thalidomide-5-7 wks) some are continuous (alcohol). ...Read more

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Am i pregnant? 46 days since my last period. Took 2 pregnancy test-both came out negative. Is it possible that I am pregnant? Or is there something I should be concerned about. The longest cycle i've ever had was 40 days

Am i pregnant? 46 days since my last period. Took 2 pregnancy test-both came out negative. Is it possible that I am pregnant? Or is there something I should be concerned about. The longest cycle i've ever had was 40 days

Hpt: Reasons for missed/late periods: low body weight, obesity, marked weight ^ or v, over-exercise, endurance athletics, breast-feeding, ^ stress, illness, eating disorders (bulimia or anorexia), anovulatory cycle (no egg released), travel, hormone irregularities, drug use, meds (i.e., birth control) or medical problems (i.e. PCOS). #1 reason is pregnancy. ...Read more

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Why did human chorionic gonadotropin help women get thin early in the pregnancy?

Why did human chorionic gonadotropin help women get thin early in the pregnancy?

It usually doesn't: Most women do not lose weight during early pregnancy. When they do, it is usually because of nausea and vomiting from the high estrogen levels, which is an indirect effect of high HCG levels. ...Read more

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How deep will the penis go inside vagina for a normal human being with descent erection to have better chances for pregnancy during her ovulation?

How deep will the penis go inside vagina for a normal human being with descent erection to have better chances for pregnancy during her ovulation?

Good luck: Just ejaculate in the vagina and nature will take care of the rest. This is an exciting time for you, and too important to let old superstitions worry you. ...Read more

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Miscarried at 16 weeks and d&c 3/14. Period 4 weeks after, but now been 35 days no period (longest ever). Neg. pregnancy test. What could be wrong?

Miscarried at 16 weeks and d&c 3/14. Period 4 weeks after, but now been 35 days no period (longest ever). Neg. pregnancy test. What could be wrong?

Anovulatory bleeding: Pregnancy is always on the list of possibilities when a woman has abnormal uterine bleeding or cycles. You may be having anovulatory cycles (cycle without producing an egg from the ovary). If a urine pregnancy test is negative, i would recommend evaluation by your gynecologist, and treatment will depend on the cause of the abnormal bleeding and your current short-term pregnancy goals. ...Read more

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What is the normal heart rate of human fetus at 17 weeks of pregnancy?

What is the normal heart rate of human fetus at 17 weeks of pregnancy?

About 140 (+or- 30): The fetal heart rate can vary considerably depending on the mother's heart rate and health and on the fetal metabolic state, level of activity and probably several other factors. Normally in a very quiet, relaxed postprandial or sleep-like state, it would tend to be low (115 to 120) ; at other times it could possibly rise to 150-160 beats per minute or transiently perhaps to 170-180. ...Read more

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Can embryonic diapause happen in humans? I have pcos and have achieved pregnancy, but dating the pregnancy is not making sense with dates of sex.

Can embryonic diapause happen in humans? I have pcos and have achieved pregnancy, but dating the pregnancy is not making sense with dates of sex.

Embryonic diapause..: (delayed implantation of a fertilized egg) can happen in human embryos, but only for 6-12 days after conception. Also, women with PCOS may ovulate later in their cycle than average. Sperm can live in the Fallopian tube for 3-7 days. Calculating your conception date solely by the calendar can theoretically be off by up to 2 weeks. Interesting question! ...Read more

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Can embryonic diapause happen in humans? I have pcos and have achieved pregnancy, but dating the pregnancy is not making sense with dates of sex.

Can embryonic diapause happen in humans? I have pcos and have achieved pregnancy, but dating the pregnancy is not making sense with dates of sex.

Other mammals: Embryonic diapause occurs in some mammals but it is not known to be a physiologic process in humans. Have your doctor review your gestational dating criteria and the conception date can be calculated for you. With PCOS ovulation may occur at random times. ...Read more