pregnant ?!!!?

Please help me!! I started having sex after my last period in the beginning of December. I am not on the pill, but I have been crazy safe and he's worn a condom and pulled out every time (we also always check to make sure there are no holes). I was supposed to get my period two days ago and I haven't gotten it. Naturally since it's my first time being late since being sexually active, I'm kind of nervous. I'm getting my usual period symptoms; cramps, sore breasts, gas (sorry if that's tmi !!), but I'm still anxious. What is the possibility that I'm pregnant? I'm planning on taking a test if I'm over a week late.