Needing advice

Saturday night..(last week) i was having mild cramping and little nausea.. i went to use the bathroom and when I wiped i saw extremely bright pink on the tissue.. i wiped again and nothing was there..and i haven't had it since..according to ovia and this app,i ovulated the 21st ..my af was 5/7-5/11 and I'm due for my next 06/04..is there a chance i ovulated earlier? anyone knows what that could've been? It's only bothering me because I have no idea what that was at all..lbs..somebody please give me ideas or advice please.