We went to a specialist after I found out my FSH levels where a bit high- after my hubby already underwent 2 Vasectomy Reversals in our journey TTC. The clinic we saw was wonderful... everyone was very willing to answer all my questions, which I had many! lol.
I had initial blood work done (to recheck my FSH/LH/Estrogen levels), I then had a vaginal ultrasound to check my uterus/ovaries initially looked OK and to check how many follicles I had. I then took the 'Clomid Challenge' where I was on Clomid from CD5-9, then CD10 they took additional blood to recheck my levels. I also had a Dye test done to look at my uterus, tubes and ovaries to make sure was all clear. My hubby had an SA done.
It's really a step by step process... but your specialist should talk you through each step and let you know how things are going.
Best of luck to you hun!!!!!