So, I've been quite antsy about penetration for a long time. Now that I have a boyfriend, and I think sex will happen sometime soon, I've taken to "practicing" with a dildo. Today I was able to do it with no pain -- I've had a bit of pain before, but today at most some minor discomfort. Doing this has made me a bit less anxious, and I've felt totally in control (duh, I was alone). Together with stimulating my clitoris it actually feels pretty good. I know it's a little dumb but I felt a lot of pride at being able to do this. I want things to go smoothly, and I really do not want to be in pain, especially not when it comes to my vulva/vagina.
The problem is, my boyfriend is quite a bit bigger than the dildo I've been using. I really don't want to feel pain. I don't think I can get any new advice on this (foreplay, lube, relax, I know the drill), I just want some reassurance I guess. Also, I know this is a stupid concern, but porn culture and all has still put the thought in my head. The fact that I didn't feel pain before doesn't mean I'm "loose" now, does it? Logically, I know no vagina will be "stretched out" by a penis, but I've noticed that arguing with myself on the basis of logic doesn't really help with these kinds of questions.
Anyway. Is there some way to avoid hitting my cervix during penetration? I think doing that is what has caused the most discomfort when I've tried by myself.