HELP!!

So I have a really sticky situation and im really confused!

I was bleeding a few weeks ago (heavy and thought was a period)

Me and my partner had intercourse on Tuesday (5 days ago) Thursday I started lightly bleeding again! Dark in colour not much flow just here and there... today I’ve had brown mucus looking discharge/blood.

Any ideas what this could be? Could I have a chance still of pregnancy? Or is it out the window! It’s a year today since I miscarried so I’m unsure if my thoughts are just running away.