Can i be pregnant

I had unprotected sex while being on birth control in april. I got period 2months after the sex buh I didn't get it this month. Can I be pregnant?

its a possibility
because NO form of birth control or contraception is 100% effective at preventing pregnancy
so any time you have sex
(wether it be proteceted or not)
there will always be a chance of pregnancy
your missed period could be due to other things like not eating, stress, exerscising too much, ect
but to find out if your pregnant take a pregnancy test 2-3 weeks after you had sex
(any sooner and the results won’t be accurate)
in the morning with your first pee is the best time
and take it when your period is due
alternatively, see a doctor for a blood test
this will both let you find out quicker and give you more accurate results

First of all, birth control IS protection if you're using it to prevent pregnancy (it doesn't protect you from STD's).

Furthermore, you had your period for 2 months afterward.

You haven't got it yet this month - it could just be a little late...did you forget one of your pills? Many things can make your cycle fall off track, but unless you've had sex again recently without taking the birth control, it's a pretty slim chance that you're pregnant.