Do you check your CM?

TD
I've been TTC baby #2 for 4 months. I'm tracking ovulation but my cycle seems strange and ever changing month to month. I don't notice cervical mucus in the days I should ovulate or even overall, I'm hesitant to check only because I feel like I don't know how? Do you just go in and see what texture you have on your finger? Sorry for the blunt question but I'm confused.