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Doctor insights on: Early Pregnancy Factor

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What produces "early pregnancy factor" (epf) in the blood 24-48 hours after fertilization? Why isn't this type of test used to determine pregnancy?

What produces "early pregnancy factor" (epf) in the blood 24-48 hours after fertilization? Why isn't this type of test used to determine pregnancy?

Immune system: Moms immune system produces epf in response to signals from the early embryo. It's not used to determine pregnancy because false positive and false negative rates are too high to be clinically useful. ...Read more

Dr. Chevies Newman
1,113 doctors shared insights

Premature (Definition)

Very premature is a condition in which a baby is delivered between 28 and 31 weeks' gestation. Depending on how premature, how sick, and how lucky or unlucky a baby is, he can get brain problems, cerebral palsy, blindness, deafness, developmental problems, learning disabilities, severe lung diseases, infection and loss of some intestines, etc... Babies who are only moderately premature usually ...Read more


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What are the statistical odds of impregnation on ovulation day and does that stat factor in the likely following chemical pregnancy/early miscarriage?

What are the statistical odds of impregnation on ovulation day and does that stat factor in the likely following chemical pregnancy/early miscarriage?

Complex..: Prospective estimation of date of ovulation and retrospective estimation of date of conception are closely related since conception occurs within a few hours following ovulation,(Royston, 1982; Wilcox et al., 1995). In pregnant women, the true day of conception is considered as the true day of ovulation. Late fertilization (after more than few hours) has been associated with early loss. ...Read more

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Early pregnancy symptoms?

Many or non: Can include a missed period, breast tenderness, breast enlargement, weight gain. Take a pregnancy test if you are not sure if you are pregnant. ...Read more

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Signs of early pregnancy?

Signs of early pregnancy?

Varies from person: For some the first sign is a missed period without other noticeable early changes at all. For others, you may have one or more of the following symptoms: nausea day or night, increased urinary frequency, breast tenderness, marked fatigue, mood changes, food dislikes or cravings, stronger smell sensations, constipation, bloating, mild cramping, low grade headache. Do a pregnancy test to confirm. ...Read more

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How early are pregnancy symptoms?

How early are pregnancy symptoms?

Varied symtpoms: You can have pregnancy associated symptoms days before you miss a period! common findings are swollen or tender breasts, fatigue and nausea. If you have a question, you can always take a home pregnancy test for very accurate results. ...Read more

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What are early pregnancy symptoms?

Nausea, breasts sore: Many women have nausea or sore breasts when they get pregnant. Some women don't feel different at all. Missing a period or having a really light period that is weird for you can also be a sign. ...Read more

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What are signs of early pregnancy?

What are signs of early pregnancy?

Classic pregnancy: sxs begin when period is missed or thereafter (6-8 wks). Sx’s can include: tender /swollen breasts, nausea or vomiting; lack of period; ^ frequency of urination; headaches, insomnia, fatigue. Moodiness, mild cramping, food cravings & aversions; passing gas; enlarging waist line & ^ white, milky vaginal discharge. Take Pregnancy Test to know. ...Read more

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Early, physical signs of pregnancy?

Early, physical signs of pregnancy?

A #: Classic pregnancy symptoms usually don’t begin until the day your period is missed or after that. These can include: tender or swollen breasts, nausea or vomiting; lack of a period; increased frequency of urination; headaches, insomnia, fatigue. Moodiness, mild cramping, food cravings; passing gas; enlarging waist line. Etc. There may be an increase in white vaginal discharge. ...Read more

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What are symptoms of early pregnancy?

What are symptoms of early pregnancy?

Early sxs: Classic pregnancy symptoms usually don’t begin until the day your period is missed or after that. These can include: tender or swollen breasts, nausea or vomiting; lack of a period; increased frequency of urination; headaches, insomnia, fatigue. Moodiness, mild cramping, food cravings; passing gas; enlarging waist line. Etc. There may be an ^ in white vaginal discharge. Take a hpt to know. ...Read more

Dr. Lois Freisleben-Cook
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