Explanation of IUI

Maranda • 26💑28 TTC#1 June 2017 Stage II endometriosis IUI#1✖️IUI#2✖️ IVF Jun 18’

Can someone explain to me how <a href="https://glowing.com/glow-fertility-program">IUI</a> works? I thought that it was placing the sperm close to the egg close to ovulation, but then I see where people are told to have sex at a specific time.

Do you have times intercourse at a certain time or is the sperm placed in your uterus in a different way?

Husband are are are looking at our options after a few rounds of meds without any success. Thanks!