pregnant

so me and my bf have been having a lot of sex, like daily! he always wears a condom since we are both in college and dont need kids right now. One of those times the condom fell off, he said he didnt come inside me but there was nothing in the codom and he was done. This happened like 2 weeks ago, I should have gotten my period like yesterday but I havent. Do you guys think I can be pregnant? or I think my body is getting used to the system of having sex each day and it might have delayed my period?? Im kinda scared right now. Please help!