Middle of my cycle help!

Last night I ran out of my digital clearblue strips. Supposedly, I am in my high phase and have been since the 7th. I’m afraid that I messed up those tests by me starting in the middle in April. In April I got a peak on CD11 . This month I haven’t got a peak yet and I’m on CD 12. Will it be okay for me to buy to by another kit in the middle. On Monday I started to see EWCM as well. I also can kind of tell when I’m about to ovulate because that side will stiffen up around my hip.