Please help me do the math with possible pregnancy...?

[LovelyManders]

My last period started June 16th. We had unprotected sex on CD 7. That is the only and last time we had unprotected sex. I experienced very bad period like cramps on CD 32 but no period. Here I am on CD 39 still getting the odd cramps here and there but no period. I'm usually pretty regular but I don't know how many days my cycle normally is. Is it possible that I have gotten pregnant. I don't want to test if you all say that it doesn't sound possible.