Ideas?

What has helped y’all the most in trusting your IUDs. I’ve had the Mirena IUD for about a year and still cannot seem to trust it. Does ovulation testing help? My partner and I do not like condoms but use the pullout method whenever we do have sex. (Which is much less because of my anxiety over getting pregnant accidentally again) I’m just wondering if you have found anything personally that helps. I’m 21 and have a 1 year old boy who is my world, but I would like to finish college before I have another baby.