Could my ovulation be delayed because it is my first time?

I am 15 years old. I had sex for the first time on the 8th of this month.. my boyfriend and I are very worried. at first, there was no use of a condom. and he did not ejaculate. later that same day, he did use a condom and there seemed to be absolutely no type of hole or holes in it. I am really stressing about it.. my period is supposed to arrived between the 23rd and the 27th.. I am scared because I have yet to ovulate. I was wondering if, due to circumstances, I may be pregnant. I don't have any early symptoms of pregnancy but I did recently get a yeast infection.