Could I be possibly be pregnant?

It is very possible..I took a pregnancy test every week for 5 weeks, all said negative. Week six, I went to the doctors, they did a urine test and that said negative. At this point I had no period, my boobs were extremely sore. 5 days later, I went back to the same doctor and told him I was almost positive that I was pregnant so he order a blood test, sure enough I was. 5 days made a difference in testing! It probably would be better to wait a while. Prenatal Vitamins are good to take wether you think your pregnant or wether your trying. As far as symptoms, sore breasts, vomiting, missed period are the most common early symptoms, but on the other hand, some women don't experience this at all. Everyone's body is different. I would just wait a couple weeks and if you don't have your period, get blood work done. That is way more accurate than a urine test.