My name is Courtney. Me and my significant other recently lost our first born due to stillbirth Oct 23'17 . And Nov 20'17 I had my first period since & then i had another period Dec 15 . But Jan came & my period has came on neither of those days ! So after we had unprotected sex this morning, and i came home took a pregnancy test and it was negative but around 7pm i started spotting . Whats going on?