Positive test 2 weeks after period ended

HI guys , so I'm new here and I've been just using Flo to track my period and sex and stuff. So last month I had a positive FRER and Digital test said YES on another brand. Well I started bleeding the night I got my YES digital. Went to my nearest urgent care and their pregnancy test was negative , blood work was also negative. Now the last time I had unprotected sex was July 18th before my period starting on July 25th. My period lasted the usual 7 days with some clots. Now I'm just feeling bloated my PMS bloating has not gone away. I had sex August 4th but with a condom and then haven't had anymore unprotected sex since yesterday. Any idea what could be going on?? My pregnancy test was definitely positive and came up within the allotted 3 minutes for clearblue so not an evap. Its been only 2 weeks since my last period. It’s more obvious in person. This is my second test like this because the other one I didn’t get a pic of. This one was lighter but I was eating and drinking a ton.