False positive?

Nikki

We've been trying for four months and being the instant gratification person I am started to convince myself it wasn't gonna happen.Today I was supposed to start my period but haven't had any symptoms so to ease my mind I took a pregnancy test because that usually always starts AF But it said pregnant.My period is technically not even 1 day missed.Is this right? My CM is also like lotion if that helps never noticed what it was pre period before