Period is 4 days late!!!!!!

I stopped taking the pill about 2-3 months ago. TTC for baby #1. Period was 2 days late last month. This month, I was due to get it on the 8th. It's now the 11th. I don't really have symptoms of my period. I don't have acne like I usually get before I get my monthly. I do have some cramps, but not too bad. It's hard to explain. During sex, after I orgasm, it hurts for him to keep going. Is any of this normal? What do you think it is??