Can you be pregnant but still have your period if you're on birth control?
If a woman has a period, it is unlikely that she is pregnant;
however, birth control is not 100% effective. The bleeding you have
while on birth control is not actually a period; it is withdrawal
bleeding, a reaction to lower hormones in the days you use a
placebo pill.
If you're having a typical withdrawal bleed, chances are low
that you are pregnant. If you're pregnant, you will not have a
normal withdrawal bleed. However you may experience brown vaginal
bleeding or no bleeding at all.
Even without the birth control pill, some pregnant women have
bleeding (similar, but not equal, to a period) in the first month.
This spotting is common, and doesn't mean that something is wrong
with the pregnancy. But if you're having bleeding or spotting with
a positive pregnancy test, contact your health care provider today.
If you're having pain, bleeding, and a positive pregnancy test, go
to the emergency room.
Pregnancy with bleeding while on birth control is possible.
First, birth control pills are not 100% effective and it is
possible to become pregnant while on them. Second, bleeding during
pregnancy is possible, but usually signals a miscarriage or ectopic
pregnancy.