Period or? Please help I’m very confused

Hi guys, I’ve been late for my period. Use condoms when having sex and I’ve been on the pill but I stopped for a while then started again. Done about 6 pregnancy tests all negative.

I did one this morning and it was negative

And then I saw that I had a bit of blood on my underwear this afternoon. It was about 2 drops and I put a pad on. This is what it looks like?

What does this seem like?

Update: did get my period. Have been passing clots but it’s usual for me. Thanks for all the help you guys are amazing! Xx