HELP! IS THIS POSSIBLE ?!

Asap • Loving mommy and girlfriend ❤️👶🏾 FTM to a beautiful baby boy 💙 1.19.2018
I took two different brands of pregnancy test first response early response and clear blue digital 
I took the first response early response two weeks prior got two positives but the same day i took a clear blue digital and got "not pregnant" waited two/three weeks and tested again and got "Pregnant 1-2" .. Me and my boyfriend had sex the following day i bled a little.. Then the next night i started bleeding pink/red then it stopped next morning it was clots. Went to the hospital they said my blood work came back negative and the pregnancy test .. Im confused