Help! It's complicated! period/ttc related

OK.. so, I was supposed to start my period on Thursday or Friday. On Thursday I was spotting, but then it went away completely on Friday. Until I went to the bathroom in the middle of the night on Saturday, I had brownish discharge all day and half of Sunday too. Then it turned to some sort of egg white looking with a little blood on it. I've been ttc.. could it be that I'm pregnant? Before all this, I was regular and I'd get my period right on the day the app said I'd get it. HELP!!