If i had unprotected sex on 2-2-13, could a pregnancy have been mistaken as a cyst on my right ovary on 2-20-2013?

Family practice : Probably not mistaken as a cyst. Did you have an u/s due to pain. Have a pregnancy test and tell your dr about your concerns. If positive preg test you worry about ectopic pregnancy if pain is envolved.

C Luteum: It is a corpus luteum from ovulation or an early corpus luteum of pregnancy, hard to say, but this is physiologic and you should do a pregnancy test.

I don't think so.: The cyst can bee easily seen on the us, and the pregnancy blood tests with the progressive elevation of the beta-hcg should tell for sure.