Are The Symptoms Of PMS And Pregnancy Similar?

My boyfriend and I had sex but stopped after about 10 seconds. We used a condom and I am certain that it did not split. This happened around my time of ovulation. The first day of ovulation I think. A few days after ovulation, one of my nipples was sore and about a week later both my breasts and nipples were sore just like I get with pms each month. I also felt sick and lost my appetite a week after we "had sex" which went but now I believe it is back. I have been having cramping for about 5 days now which I always get before my period. My period was due yesterday which I did not get. I have been feeling tired but I believe that could also be due to pms . A couple of veins have also appeared on my breasts since last week. My breasts are barely sore now which is strange as they are usually sore until I start my period. I would also like to say that last month my period was 2 weeks late so could I also have a late period this month? Is this just pms/worry or could I be pregnant?