Plsplspls any advice would be amazing

So I have been on the pill for a year and a half now. I took a pill late a couple of weeks ago and noticed some breakthrough bleeding that started on2 Sunday’s ago. I’m concerned because I’m still experiencing the bleeding more than a week on and I had protected sex (condom) last Tuesday.

Is there any possible chance I could be pregnant ?

And why would I have breakthrough bleeding that lasts this long ???? I’m rlly nervous lol