Rachel,
It is possible to become pregnant while on the birth control pill, though much less likely than without birth control. The pill usually prevents ovulation from occurring, and hence prevents pregnancy. If ovulation did happen to occur, which is fairly unlikely but possible, the pill can change the lining of your uterus to make it less likely for a fertilized egg to implant and a pregnancy to develop. I don't think that birth control would be enough to cause the termination of an embryo that has already implanted, but if you do find out that you are pregnant you will want to stop taking birth control because it can interfere with hormones designed to maintain a healthy developing pregnancy. If you suspect that you might be pregnant you should take a pregnancy test to find out for sure. Hope this helps.
Kate<br><br>Post edited by: Julie, at: 2005/12/13 01:30
