Loosing my mind

Megan

I need answers: I was 5 days late so I took a couple of Pregnancy test and it was a very light positive. Wasn’t sure if it was even a positive or not, so went out and got a Digital pregnancy test and it came back not pregnant. A day later I started bleeding witch seemed to be a regular period. So we just chalked it up that I was not pregnant. My boobs still hurt super bad after my period ended Which never happens it’s always before my period and never after..... so I took a another pregnancy test yesterday and it came back strongly positive then we went out that same day and got a digital pregnancy test and it came back saying pregnant. Now today I started bleeding again. What is going on. Has this happen to anyone else? Is it a miscarriage?