I had unprotected sex with my ex boyfriend, a little over 2 months ago. (Have not had sex since) I have had 2 periods since then, however I am late for my 3rd period by 4 days now. I have an IUD and I also tested negative on 2 hpt's. My doctors office is closed for another 2 days and I am becoming very worried.
Wait for the doctor it's probably you're IUD. In the mean time just go relax. Try not to have anymore unprotected sex until you're ready for parenthood.