Please help me! 😩

I’ve been trying to conceive recently, this is my first month since trying after a d&c; at 18 weeks last month.. I’ve been checking my cervix daily trying to get used to everything and I’ve noticed that my cervix is either medium or low and it’s always open! I can fit the tip of my finger in there 🙈 is this normal or...? I’m so worried that it’s not normal!