worried about early pregnancy

Caitlin
I'm posting here because I think I'm definitely pregnant so I shouldnt go in the faint lines, but I'm concerned about my levels. I'm hoping others with similar experiences can encourage me. I'm 13 dpo and since 9 dpo I've had probably 10 positive faint lines on different tests (target, frer, and wondfo) but both at 12 dpo and 13 dpo fmu I've had negative digitals. One was a target digital and today was frer gold digital. Should I be worried it's a chemical? I can't get in with the doctor until Monday but wish I could start on progesterone! I had progesterone from the start with my first pregnancy...any ideas?