Pregnant after miscarriage?

Did anyone get pregnant right away after having a miscarriage? I got my miscarriage period July 8th-12th. As of August 23rd, I still hadn’t gotten my normal AF since the miscarriage so I took 2 tests. Both were positive ✨ I’m just trying not to get my hopes up though. The HCG from my first miscarriage wouldn’t still be in my system right? I’ve heard it only takes 2 weeks for HCG to leave your body but I’m just worried about this possible second pregnancy now

Here is one of the tests I took 2 days ago ^^^