Chance of being pregnant?

I stopped my bc on the 20th of October, and around the same time was prescribed a medication that can interact the pill anyway.

Is there a chance a pregnancy test would show an accurate result yet. Im so nauseous but I don’t know if it’s anxiety.

I did have a faint test 2 days ago but I think i checked it out of the time window. And then I did a did a digital one and it blinked then went completely blank.

Is it too soon to be pregnant?