TMI! Excess random discharge

Abigail
So I know this is TMI but last night I literally felt like my period had started because I had like a flood of discharge?! I did a test for any infections a few days ago and it was fine, and I've taken an ovulation test and I'm not, so what even is this? When I looked in the morning it was just thin and watery, but there was a lot 😳 I'm meant to ovulate next week so it can't be my cycle surely?! And it doesn't smell really. It also happened today randomly 😖
Help please!