I think i had a miscarriage?!

Marci
AF was due on July 10th but she still has yet to show... pregnancy tests on the 12th & 14th both came back negative. Last night when i went to the bathroom i noticed a couple light pink circles floating in the bowl when i went to flush. I had a miscarriage last year at 6/7 weeks & i remeber what that quarter sized lump of tissue looked like when it came out. These reminded me of it. I'm wondering if maybe i had an egg or two get fertilized durong ovulation but failed to implant or something? I honestly have no idea! I feel like unless somethong was going on that AF would've shown up or that the test would be positive. Has anyone else ever experienced this without any bleeding?! 4/5 weeks potentially