faulty test??

hi all. i usually test every week for peace of mind. not actively ttc.

i went off my birth control pills at the beginning of march and had a normal withdrawal bleed. What I thought to be my period came about 30 days later. It seemed like a normal cycle. i took a test on the 8th (CD 6) and it was negative.

Today is CD 11 and I got a faint, but visible line on a cheap test. I had sex on CD 2 during my period. Is it really possible? It’s so random and unexpected. It was with FMU. I have a FRER to take tomorrow morning. I know if it were the case I could be 8-9DPOish so it’s possible but it just seems so early. I can’t believe that I could even ovulate that early.

Someone suggested that my period was not actually a period, but another withdrawal bleed or possibly implantation. It was 4 days of light bleeding.

I’m posting the photo, sorry if it’s not allowed. There’s a small dark spot on the test line which could possibly be an indent or something.

Any insight is appreciated!