Thinking it's time to call my obgyn!!!!!!

Hi ladies I've been on glow for a while, I've gone through 2 miscarriages in 2015 that were 5 month apart. And pretty since October of 2015 my husband and I been trying for our rainbow and we seriously haven't had second of hope. Countless opks and hpt test, vitamins fertility supplements and nonstop tracking. So we think it's time that I talk to my obgyn to run some test.....that's where I need your help! We I call what do I say? What should I expect from them? And what's test and steps they normally take? For thoes which had to seek help what was your experience.?

Thanks