Please help..really distressed?

Okay please help me here! I had sex with my boyfriend for the first time 2 days ago we used a condom and everything. I was due my period the day before but never got it. I still havnt got it and even thoughmy boyfriend didnt come durin sex i made him by taking the condom of and giving him a handjob. I still sooooo stresses i might be pregnant. Please give me advise i hope i couldnt have got preg in any way x