I feel so behind in life

I'm 22 I feel so behind in life most of my friends are engaged have babies all that and I'm just not even close. I have a wonderful boyfriend I love him soooo much but he's 18 in the Army and sometimes I feel like I'm taking away he's freedom is it wrong I want to be married with kids before I'm 26 and he wants to wait 7 years before we are even married..idk wat to do I love him but 7 years I will be 29 I really don't wanna have babies in my 30s. By no means am I trynna rush him but I'm also not trynna wait forever.