Hii We Are Married 2 Year Back. Now We Are

Hii we are married 2 year back. Now we are planning to have children. When we have consulted gynocologist, she has checked our reports and confirmed that I'm having low sperm count and my wife has a problem of egg rupture. She has suggested us to use medicine for a month and she would do IUI ON 14TH day. But when we reached her on 14th day she did IUI. But when my wife again experienced period, we have reached doctor and she said that 3 eggs were ruptured but one more egg was not ruptured.

Can you please advise us that what she said is true? Is there any situation of getting 3 - 4 eggs to rupture? Pls advise