Pregnancy

Just seeking Opinions, so currently I’m pregnant I did at home insemination 1 time and that was on the 16th , I tested ovulation on the 18th night (couldn’t test sooner due to no test) got a extremely dark test line , 19th got a positive that morning but not as dark , and that night got a negative. Got my first positive pregnancy test at 8 Dpo and positive digital at 9 Dpo . Is this normal ? Am I sooner than I think ? I had a mc back in oct kind of scared what causes this positive soooo soon (these tests are 8-9 Dpo)