IUI - intra uterine insemination

Angela • Ttc #1 , hoping no mc this time

hey I am going to be starting IUI's in the near future and my husband and I have been trying to get pregnant for 3 years since miscarrying. He has a low sperm count and that is the issue as to why we have not been successfully achieving pregnancy . This is all new to me is there anything anyone can contribute to this who maybe have had a similar experience . Any advice , success or any story would help. I'm so scared that it won't work . Thanks in advance .