Anyone else unable to check CM because it's so painful to check it?

💖😎💟 • I want to be a Mommy!👶 I believe in the good of humankind. 💕
I can't check my CM because even when I can insert a finger into my vagina, I still can't get far in to check anywhere near my cervix. I am also in pain after checking, from anywhere from an hour afterwards to the next day. Checking my cervix position is something impossible. I quit checking my CM because the pain was so bad. Am I the only one like this? I use OPKs to find out if I'm fertile. Temp tracking doesn't work, as I'm a chronic insomniac.