My boyfriend and I were engaging in sexual activities such as fingering and grinding (only for about 10 seconds) except without protection. There was no penetration and ejaculation happened after this on my chest. I didn't know the risk of pre-ejaculate until afterwards and took plan b 23 hours after the incident to be safe. I experienced by period 3 days after plan b and it was slightly lighter though the side effects were prominent. A month later, I got my second period on time but when that finished, I began to get bloated constantly. 3 negative pregnancy tests. Occasional stomach pains, constipation and mild breast tenderness out of the ordinary. I have just experienced my third period since the incident and I'm experiencing severe bloating and some abdominal discomfort as well as veiny breasts (don't know if they had previously been veiny?). I took another 2 pregnancy tests and they came out negative. I'm still bloated and experiencing some very mild abdominal discomfort (I do not know if I'm imagining this). I have also been extremely distressed about the whole ordeal, heightening sensations that I thought were symptoms. I have learned my lesson to say the least. I was wondering the chances of pregnancy in my case? Or am I being paranoid?