[twinstars]

A girl on the pill DOES NOT OVULATE.

Feel free to correct me, but that's what I've been told.

So if I'm right, this whole business about when her period came and how many days, etc. really doesn't matter much if there's never any egg being released (if the pill is working).

It's fairly normal to come inside a girl who's on the pill... that's the whole point of her being on it... to prevent pregnancy.

If she takes it every day (no forgetting), and takes it at about the same time every day, there's really a 1% chance or something that she could be pregnant. That is the pill's failure rate (even when you don't pull out, ever) for a whole year! So if you kept doing exactly this for a whole year, there's still only a 1% chance she'd become pregnant over the year.

There is practically no way she's pregnant if she's taking the pill correctly. It's not as if y'all had unprotected sex or something. You used one of the most effective means of protection.

You should wait until her period is actually late to even start worrying about this (and I really think there's nothing to worry about, the odds are so low). Her period should be pretty predictable since she's on the pill. She should know which day it usually starts. If it comes late, she should take a pregnancy test which you can buy at a drugstore. Even if she is a few days late, there can be other reasons why. I'm on the pill, and once my period came late due to a flu-type illness I had at the time. Even though I was on the pill, I freaked out and got a pregnancy test since I had never been late before. I wasn't pregnant, the sickness had just thrown my cycle out of whack.

Seriously, stop worrying until you at least have some evidence that she might possibly be pregnant. Girls on the pill don't get pregnant left and right.