Cervix before period

My period is due in 3-4 days and my cervix is high even high than it was during ovulation May 29th. It’s high, wet, soft and closed. Is that normal?

I only ask because hours before I ovulated I took plan b which didn’t work to stop ovulation because I didn’t know it was that close. I take my temps and use opks and I check my cervix so I know my body.

I just know ppl say the cervix should be low and cm should be dry before your period but I have such watery cm and a super high cervix and am wondering does it drop the day of your period or the day before? Maybe I have more time for it to drop?

I had unprotected sex on Monday (Memorial Day) and took plan b 24 hours later Tuesday night after having EWCM. The next morning (Wednesday) my temp had dropped drastically and I had a positive opk. Then Wednesday night my cervix was open. Thursday my temp shot up and stayed high.

So is my high cervix (still soft and wet) a cause for possible pregnancy or have other ladies on here had their cervix stay high until the day of or day before their period?

Thank you.