Discharge during pregnancy?

So about 4 days ago I was cleaning an in my Pj's I did'nt have any underwear on at the moment & it started to feel wet down there , so I went in the bathroom & it was brown clear an a little pink discharge . After that i didnt have it again but i've been having clear discharge alot while i go to the bathroom , or at anytime I don't know if it could mean im pregnant or what ? I've have been TTC . DId any of this ever happen to you while you were pregnant? My last period was April 19th but im just curious Thanks.