High OPK while on peroid

Lizz

Hello all. So I have had a 12 day peroid this cycle which isn’t normal for me normally they are pretty consistent of 7 days. I think today is my last day it’s very light. On day 8 I thought my period was ok so I took a clearblue advanced ovulation test and that day it was just a circle so low. Day 9 my peroid was still going so I didn’t test that day. I tested day 10 and got a blink smiley so high reading and I’ve had that for the last few days. I did try another test as well today which was the digital femometer and the test was negative. So today I got a neg opk from femometer and a High reading from clearblue advanced plus I’m still on my peroid but like I said this feels like it maybe my last day. Has anyone else had a high opk reading or even a peak while on their period or why would I be experiencing that?