Birth Control and Pregnancy: What to Do If You're Worried

Question
I am taking birth control but I am worried I am pregnant, will the birth control be harmful to the baby if i continue to take it until I find out for sure if I am pregnant?

Answer
http://plannedparenthood.org/birth-control-pregnancy/birth-control/the-pill.htm

However, a missed period does not always mean you are pregnant, especially if you have not skipped any pills. But see your clinician if you miss a second period.

It is unlikely that taking the pill during early pregnancy will increase the risk of defects in the fetus. However, the likelihood of tubal pregnancy is greater if you become pregnant while taking the progestin-only pill.