chemical pregnancy

So my boyfriend and I having been trying to comcieve for a year now. 4 days ago I was SOO excited to have gotten THREE positive pregnancy test. ❤ And I absolutely couldn't wait to get off work to share the amazing news with him. We were so so happy that we FINALLY made it happen. Yesterday day I started bleeding heavily and went the the hospital where they took blood and told me that I was not pregnant. And that I just had a chemical pregnancy. I know this happens often but I'm so torn.