For the love of god help!

This is killing me. I have very irregular periods. I don’t know when they come. I skip months often. Had sex 7/28 don’t think I ovulated that day but think I did 8/1 or 7/31. I have two kids so I know what my ovulation and pregnancies feel like. Tested positive at 12 dpo with my first two. I’ve been having insane breast pain and back pain. Back pain was my biggest indicator with my first two. I’ve tested a million times and it’s all neg. is it too soon or is it possible to have a period without blood?! Cause if this isn’t pregnancy it’s the worse pms I’ve ever had. Two pics below. The one with the arrow is where I see a line but hard to tell with pics. The second one is in light and I see nothing. 😭😭😭 what’s going on?!?!