Implantation bleeding pregnant

Hi, I already posted in another thread but hope as many people as possible can answer me.

I forgot 4 pills in week 1 (too long break) and 2 in the third week (first 2 days).
From day 4 in week 3 until now, I've had breakthrough bleeding.
I do feel pregnant, and I did ovulate, but today I noticed some dark streaks (2, dark red/brown) – think it's cervical mucus?
The days before, I only had bright red blood without clots.
Can that happen if you're pregnant, or does it mean pregnancy is ruled out?

Thanks in advance.