am i pregnant?

my boyfriend and i have been dating for nine months and made love for the first time on June 9th/06, we had sex alot that night and for the next two nights. We havent had sex since June 11th. Before the 9th neither of us had ever had sex, since then my breasts have been somewhat tender and i get weird feelings in my stomache. It is only June 19th. We used a condom and i have been on the pill for a few months. I ended my period the day before we had sex. I am expecting my period June 28th... does everyone worry this month after their first time? is their a chance i may be pregnant?

I am worried sick
please help me.

Relax. Since you were on the pill, you used a condom and it was right after your period, the chance of getting pregnant is almost zero - it will be a miracle if you do get pregnant. The symptoms you are having (sore/sensitive breast etc.) might be because you became sexually active, or just because you are stressed out.
Everyone stresses about getting pregnant, especially after their first time, it is completely normal. At least it sounds as if you planned the whole thing, and took responsibility not to get pregnant.
I want to assure you that I am personally almost 100% sure that you did not get pregnant.
Good luck, relax and enjoy your sexual relationship responsibly!

last night my boyfriend and i had sex while i was on my second day of my period an he break in me. is there a possability that i might get pregnant?