I feel ready to go all the way but am I....?

I've been with my boyfriend for over a year and were really serious; talking about possible futures and what not. 
We've been getting more intimate and he was ready to have sex way before me so he's been waiting so patiently. I feel ready now but when the day comes I get nervous ( it's my first time) 
I want to have sex with him this summer but I want to know do I sound ready? Or am I just caving to his wants; he never forces me to do anything though.