I Am 20 Years Old And Live With My Bf.

I am 20 years old and live with my bf. We have been having sex. I had what I think was my period 7 days after my normal ovulation but 7 days before my normal period. It only lasted a day and a half to about 2 days. (My normal cycle is 28 days) Now 3 days before my normal period I sent my boyfriend out to get a pregnancy test but came home with an ovulation kit. I took the ovulation test and it came up positive. What is the likely hood that I could be pregnant?