did the condom work ??? help

I lost my v card yesterday and it was his first time too, basically before we had sex I gave him a blowjob and he came but we cleared it all up with tissue, then he put the condom on and we had sex. He checked the condom wasn't split or anything after but I just wanted to check that it was all okay basically, I'm going to the doctors to discuss birth control tomorrow and I'm meant to start my period any day now so I assume I'm not ovulating. 
Thank you !! X