My boyfriend and I have no had sex, but we have grinded without clothes on.

4-5 days ago, his penis rubbed on my vagina, but did not penetrate. Maybe just went against the entrance.

He did not ejaculate, nor did he have precum. Even if he did, he had not previously ejaculated for a while and had urinated many times since. Once he did ejaculate away from me, I got all the semen off and the penis did not go near my vagina, just near the outside, away from the entrance.

Yet I am having panic attacks thinking there may be a chance I could have gotten pregnant? I was apparently fertile during that time and since then (not sure if it was placebo effect) but I have had this sick feeling in the stomach and near my chest - no other signs. My exams are close so it may be stress.

Anyone care to settle or enhance my worry? My period is still 2 weeks away.