3 days after possible IB bfn.. input needed!

Sophie 🏴󠁧󠁢󠁷󠁬󠁳󠁿🇬🇧

I stopped my mini pill end of last month on the 22nd. Dtd on the 24th and 11days later I thought my period had arrived but it was only pink cm when i wiped and it stopped after 3 days.

I have no idea when to expect my next period as I had non whilst on the mini pill but according to glow, I'm 3 days after when it should have started.

So my question is, could that gave been IB? If so, why am I getting bfn 3 days after it stopped?

Sorry if this is a confusing post but this is a confusing situation! 🤣