Just a quick question.

Yes, you could.

The only way to know for sure is to take a pregnancy test.

it sounds lik it

Really?

Be forewarned, no one can state with any certainty, over the internet, whether someone is pregnant or not.

Is there a chance that the OP is pregnant? Sure. If she's having sex than pregnancy is always a possibility, birth control or not. But to say "it sounds like it" is not good advice, nor is it accurate.

If you cannot answer accurately, go to a forum where you can give better advice, a forum that does not require accuracy, but only opinion.

Thank you.