So in about 2 weeks i will be starting Follisim 150iu, my husbands SA is fine but dr said best chance if we do an IUI which i may not do. He also said to start progesterone in my 2WW, why!? My progesterone is normal and i have already carried two kids full term. Anyone ever done this combo? What are the chances of OHSS with that dose but no iui/ivf??