PLEASE HELP!!!!!

Ok I feel a little embarrassed writing this and it's my first time doing so. 
Me and my boyfriend had sex about 5 times about 5days ago over a 5hr period. We did use protection but I can't be sure if out of the 5 times the condom didn't break or none of the cum went inside. It was a day before my period was due but my period still hasn't arrived. I'm always on time. I just wanted to know is it possible to fall pregnant? 
I know it's probably a stupid question but I don't have anyone else to talk to about this stuff!!