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Doctor insights on: Compatible Blood Types For Pregnancy

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Dr. Sheila Smith
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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I want to take a blood test to know which is my blood type. Can this test detect pregnancy??

I want to take a blood test to know which is my blood type. Can this test detect pregnancy??

No: Test for blood group and pregnancy are very different tests.
For good health - Have a diet rich in fresh vegetables, fruits, whole grains, low fat milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form.
Practice safe sex.
Get HPV vaccine. Read more

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Does your blood type change with pregnancy?

Does your blood type change with pregnancy?

No: I agree with dr garvey. The answer is no. But if a health care provider ever says the type is different from what was determined in the past, a patient should ask a doctor to review her chart. Also anyone ever needing a blood transfusion should ask to see the blood type on the bag before it is given. Read more

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My husband and I have the same blood type. Can it affect pregnancy?

My husband and I have the same blood type. Can it affect pregnancy?

No: Don't worry about this. Generally, stop reading internet scare stuff about blood types -- most of this is simply made up. Best wishes. Read more

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When develops baby's blood type? At what stage of pregnancy? I have negative blood my husband positive

When develops baby's blood type? At what stage of pregnancy? I have negative blood my husband positive

Conception: Blood type is determined genetically, so the baby's blood type was determined at conception. Since you are rH negative, if you have vaginal bleeding or a miscarriage you will need to be treated with a product called rhogam to prevent future immune responses to any future pregnancies. Read more

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What will happen if you have a negative blood type and your bf had a positive blood type during a pregnancy?

What will happen if you have a negative blood type and your bf had a positive blood type during a pregnancy?

Rh negative: If a woman is Rh negative, and the father of her baby is Rh positive, there is a good chance that their baby will be Rh positive. When a Rh neg mom carries a Rh pos baby, there is a good chance that at some point during the pregnancy, their blood will mix and cause the mom's blood to make antibodies which attack the babies blood causing anemia. Mom's take rhogam to prevent this. Read more

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Got have hemoglobin shots during and after my second pregnancy what blood type would I be?

Unclear question: Did you receive blood transfusion? If you did your blood group would have been determined before the transfusion. Please ask your doctor for the result of blood group typing. Read more

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I was told during my first pregnancy (which was when I was 16) that my blood type had went from O+ to A- can that happen?

I was told during my first pregnancy (which was when I was 16) that my blood type had went from O+ to A- can that happen?

Bl type doesn't vary: A lab error is the best and probably only explanation for this discrepancy ; your blood type is either O+ or A-. It did not "go from O+ to A-". A repeat blood typing by a reliable lab should give you a definitive answer. Read more

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Is it possible that a blood type changes from rh- to rh+ without pregnancy? Used to be A- but recent blood donation says I'm A+

Weak Rh: About one person in 500 has a weak version of the Rh antigen that used to type as negative but now shows as positive. There's also such thing as a lab error. Phone the blood bank and ask for an explanation. Read more

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I`m pregnant, have rh-positive blood type and Coombs test is positive. It`s my second pregnancy, in first I had negative coombs. Will my baby be ok?

I`m pregnant, have rh-positive blood type and Coombs test is positive. It`s my second pregnancy, in first I had negative coombs. Will my baby be ok?

Unsure: You will likely need to have additional testing done during the pregnancy to determine if there is any compromise of the fetus. If there is a problem with the fetus due to rh iso-immunization, then there are interventions that can improve the outcome. Keep your appointments. Read more

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If you have an RH negative blood type, it's not your first pregnancy are you more likely to miscarry?

If you have an RH negative blood type, it's not your first pregnancy are you more likely to miscarry?

Rh incompatibility: It takes time for the body to develop antibodies, so firstborn children are usually not affected. However, if a mother became sensitized prior to a miscarriage or abortion, her first birth may be affected by Rh incompatibility. Read more

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My blood type is o positive, and my husband is a negative. Will we have a+/- children, and would that make for high risk pregnancies?

My blood type is o positive, and my husband is a negative. Will we have a+/- children, and would that make for high risk pregnancies?

Possible issue: I would not consider an a/o incompatibility issue high risk, but worthy of monitoring. In your lifetime you have likely been sensitized to the proteins on the a blood cells & your antibodies will cross into baby & boost his/her chances of having jaundice. Most do well without rx & some require some special monitoring & help. I can remember only 1 case in 3 decades that gave me any real trouble. Read more

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How far along in pregnancy should you get Rhogam shot for Rh neg. Mothers. I had a mc and I had to get the shot could the blood type cause the mc.

How far along in pregnancy should you get Rhogam shot for Rh neg. Mothers. I had a mc and I had to get the shot could the blood type cause the mc.

Rhogam is for RH neg: For Rh-negative preg women, RhoGAM is usually not administered until their 28th week of pregnancy, and then again within 72 hours after delivery. It is also extremely important for Rh-negative women to receive this injection after any miscarriage or abortion in order to avoid future pregnancy complications. Blood type does not cause miscarriages. Miscarriages occur naturally 20% of the time. Read more

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5wks pregnant after a miscarriage 5mths ago, told my blood type is negative an will need a needle with my next pregnancy, why? Should I be worried? '

5wks pregnant after a miscarriage 5mths ago, told my blood type is negative an will need a needle with my next pregnancy, why? Should I be worried? '

Don't be worried: All women who have a negative blood type should get an injection of Rhogam around 28 weeks of gestation and anytime during the pregnancy that they have bleeding. If the baby has a positive blood type, your immune system may make antibodies against the baby's blood. Rhogam prevents this. Its not something to worry about if you are getting good pre-natal care. Best wishes! Read more

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If two family member wanted to get married with the same blood type, what is the chances of pregnancy and the baby for future? Does genetic test help

If two family member wanted to get married with the same blood type, what is the chances of pregnancy and the baby for future? Does genetic test help

See below: Blood type is not needed to detect problems with conception and/or future health of child. Close family members should not get married as to avoid the increased chance of genetic abnormalities. Genetic testing can help rule out problems with two people. Read more

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Dr. Sanjiv Kaul
90 Doctors shared insights

Blood Type (Definition)

Refers to the proteins present or not present on the surface of red blood cells. The types are a, ...Read more