pregnancy scare

so I got my period last time this happened & I was fine.. but here recently me and my boyfriend have had unprotected sex for like a couple of seconds & he hasn't come close to cumming... last time we did this he wasn't close and we did it for a couple of seconds but my uterus has been feeling really weird.. i feel heavy down there if this makes sense & I am easily bloated and i sometimes get random cramps in the morning and i get my next period in about 10 days.. am i skiing myself out????