Okay So The Last Time I Had Sex Was November

Okay so the last time i had sex was November 6th and it was unprotected at one point (as far as I know, he did not cum inside of me). Ive had two periods since. I've tested negative on a pregnancy test two weeks after and tested negative on a blood test a month after . However, my doctor found protein in my urine which I've heard is a sign of pregnancy AND on my second period, the period began normal but an hour later, the period stopped and a mucousy discharge appeared tinged with blood and ths period went away. When I woke up in the morning, my period came back and was normal . Is there any chance this could be a cryptic or ecoptic pregnancy ?