IUI and over weight

I’m getting <a href="https://glowing.com/glow-fertility-program">IUI</a> done soon . I’m 5’3 , 235 pounds . I’m scared because i feel like I’m too fat and the doctor is going to tell me no because of my weight . Or if I do become pregnant I’m worried I’ll have a lot of complications. Someone please comment and give me some advice or words of Encouragement. Thank you