Ttc for a year, now what?

Angela • 34 years old. I have one amazing little boy who we prayed and waited for 4 years for! He is an IVF baby! We are so blessed to be expecting our 2nd boy. He’s our little surprise!
Hello all! 
​If we don't conceive this month it'll be a year of ttc. I'm not too confidant it'll happen. :/ what is my next step? I had my annual in feb so my ob is already aware that we've been trying for this long? Do I just call his office and say "we need to be checked out"? How do you word that?