Can I be pregnant? Can i be pregnant?

I was 11 days late on 14 June and had oral sex on the same day ie 14 June. I had not had any sex before that . He did not ejaculate but had Pre cum which could have got on my vulva as he did finger me. Although he had not masturbated since a week so I doubt if his precum had sperms if by chance it got on my vulva.Could it still have had sperms? There was no penetration. I took an ipill on 15th June just in case.  I started having cramps the same dayi had oral Ie 14june.And still have them today on 18 june.Are these Pre menstrual cramps or am I pregnant? I Also I have an upset stomach because Ive travelled a lot lately.And have a vommiting sensation and burps.But they could very well be due to periods as well Because I usually do get an upset stomach near periods.I'm also having vaginal discharge which was thin yesterday but has got a little thicker by the days. Can I be pregnant? If not, could I get pregnant after I have my periods. I haven't had any withdrawl bleeding af well.