Could i be pregnant and not know?

I need some guidance and understanding please. I was having unprotected sex with my boyfriend. We would do condoms and then pull out method i of course was worried about getting pregnant so i got the birth control subscription. I was waiting for my July period which usally comes 4-5th July and it came on the 7th. It was dark red blood but wasn’t following fully. My doc said take the pill on first day of bleeding so I did that night. The next day i bled for a bit and then didn’t anymore so lasted around 1 day.

I continued the birth control and each week on my breakthrough sugar pill week - I would

Bleed. Last month this is what my bleed looked like. On an off with the bill I’ve been getting dizzy and nauseous here and there. During off times and what not. I want to assume it’s the birth control but I’m also paranoid// worried it can be something else . It would be around 14 weeks since I started. I will take a test but even taking a test makes me nervous.

Can someone please tell me how unlikely it is for me to be pregnant? People on Reddit were saying that breakthrough pill period is not a real one and you could be pregnant. Some guidance would help. I have since ended things with my boyfriend and haven’t had sex in about a month.

Anyways I attached some photos of what my period look like on the pill. Tell me that it’s not possible to bleed this much if pregnant