Positive pregnancy tests but hcg levels indicate not pregnant

Hey as the title suggests I missed my period took a test and it was positive, my cycle was a bit messed up so I asked my doc for a blood test to help indicate how far along I could be and I just got the results which indicate that I am not pregnant, also I’ve taken about 9 more tests through the week including the day I got the blood test done and they’re all positive…. Has anyone experienced this, I’m so confused *** unfortunately I only took photos of the 3 digital tests the lines were faint but there and I used the pink line tests - it won’t let me upload more than 1