Having sex for the first time

My boyfriend and I are planning to have sex for the first time.

It’s our firsts and we’ve been dating for 6 months.

Obviously I’m nervous. But I’m truly scared it won’t be Able to go in. I’ve never been able to get a tampon up there my whole life. (I’m in my 20s).

So I’m just afraid it’s not going to fit and that will be the end of us.

I know about lube and I know I’m going to use a lot of it and I know foreplay is huge as well, I just really hope it goes in.