My breasts are sore and swollen and my nipples are dry.. I got my period the 26th of January it only lasted 2 1/2 days and it was very light, I usually get it around the 9th of every month so I'm not too sure why it was so late.. I had pcos but the dr says I grew out of it.. We had sex on the 30th of December and I took a pregnancy test on the 8th of January and it was negative. Last Friday we played cards with friends and I had a few drinks and the next morning I got up I was vomiting and I never vomit from that especially since I only drank two drinks.. I guess my question is could I be pregnant?