Help-ouch!!!

My boyfriend is quite large (talking a solid 11 inches). At certain times in my cycle, it’s no big deal. Other times, I literally get tears down there that take over a week to heal. We’ve tried extra lube but still, near the end of my cycle, I tear.

What can I do to get used to him? I’m very swollen and throbbing today and not in a pleasurable way. We’ve found ways for him not to hit my cervix but I don’t know how to help with the stretching.

Edited to add- he’s not hitting my cervix, we’ve found positions to avoid that and he doesn’t “give it his all” now 😂 it’s my opening that is getting stretched and torn. We do get in a little bit of a rush at times though, so maybe having him slow down will help.