First IVF Cycle being end of February/early March 2016

I am doing my first IVF cycle in March. I took my last BCP 2/21 and I am on the Lupron luteal protocol, so I started Lupron injections 2/19. I will have an u/s and blood work sometime this week and if that all looks good start up stims (follistim and menopur) on 2/28. I am super excited and nervous, I have PCOS and OHSS is more common in PCOS patients undergoing IVF. I am super worried I will have OHSS and have to cancel the cycle..any tips would be greatly appreciated!!