I have a question for you beautiful ladies!

So ever time I am about 11 days from my period I notice my cervix is kinda low and firm. Well I checked it today (I make sure my hand is clean etc!) And it was kinda high to point I couldn't tell if it was soft or firm and struggled to even reach it. My period is due in 9 days. Has anyone experienced this and was late and got their positive. We have been trying since December and have not been successful but this is the first time it's stayed high. Normally it's getting lower by day 10 and super easy to reach and feel. I felt it about 2 or 3 days ago and it was super soft and easy to reach and now I tried every position and middle finger and struggled to reach it.