18 months ttc

We have been trying for 18 months, no luck.

We are struggling with male infertility, he has below 2 mil/ml. He has been on Maca roof, coq10, fenugreek, Ashwagandha and Vit d3 for 2 months.

We have our first fertility appt next month. What should we expect. Can we start IVF right away?