could I be?!

im 23. my boyfriend and I had sex 2 weekends ago and we used condoms. My period was due yesterday but it hasn't come yet. every time we had sex he came in the condoms. when he pulled out, I would squeeze the condoms to make sure there were no tears or leaks. idk how I could be pregnant if none of them tore..... I'm so so scared. My period is normally regular....and I have no signs or symptoms that my period is on its way...😢😢