Pregnancy
Science
Periods while Pregnant
Menstruation

Why do some women have periods during pregnancy?

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Wiki User
2008-04-18 00:33:16

If you know for sure that you are pregnant, it is probably not

going to be your period, although some women have experienced a

"first" period then learns a couple of weeks later that they really

are pregnant. It is possible that it could be implantation bleeding

caused by the fertilized egg to attach itself to the uterine wall.

Or it could be a cervical change that can cause vaginal bleeding.

Vaginal bleeding can also be a symptom of ectopic (tubal)

pregnancy. Another cause for bleeding during pregnancy is a

miscarriage although the first two reasons for bleeding are more

common, it is still a good idea to contact your doctor as soon as

you can.


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