Pregnancy right after miscarriage

Josephine

So on June 19th I miscarried and bleeding stopped on the 28th I stopped bleeding. I was going to get the mirena in once I started my period because my ob said it would be easier on me and the last time I went I had a panic attack and went with the pill and still ended up pregnant. I took a pregnancy test about 8 days ago and it was a extremely faint line so I counted it as negative and tested 2 or 3 days after again. And it was still faint but I felt like I could tell it was slightly darker. So I bought 6 more tests because I was like no way no way I hadn't even had a period yet and they all were positive. I'm scared but happy and have no idea how far along I might be if I really am because I'm not 100% sure till a clinic confirms it or I have an ultrasound. Is anyone else in the same boat as me?