I started taking Ortho Tri Cyclen on May 3rd but stopped taking them a week later. I then got my period on May 15th. Hubby and I have been having unprotected sex since then. It's now June 1st and I am having very sore nipples for a few days now and light cramping. How likely could it be that I am pregnant after taking the BC for a week or could it just be ovulation?