Can someone help me not feel alone...?

I've been "not preventing" for a year. I'm becoming desperate lol and the negative tests each month just make me feel.. Incomplete. My SO already has a child, so whereas he understands what's going on--he cannot relate to the needing I am longing for.
My cycle for the last year...
27 days
Then I had two periods pretty quickly at 13 day cycles 
37 days
26 days 
34 days
29 days 
32 days
35 days
42 days
50 days
This last one was 17 days past the "expected" day.
I haven't gone to the doctor. We haven't been preventing, but we haven't been trying. We are just.. Well, yeah. 
Advice? Tips? Anything?
Thanks guys.