Stage 3 endometriosis

Angela
I went to my doctors appointment, I found out I have right ovarian cyst, blocked left tube, and endometriosis. I am so sad I was going do <a href="https://glowing.com/glow-fertility-program">IUI</a> with a donor sperm. I really want to have a baby. I am in my late 30s.
Any ideas on what I can do?
I was suggested <a href="https://glowing.com/glow-fertility-program">IVF</a> but I really don't want that cuz I am only 5ft with small frame and 114lbs. So I don't want multiple chance of babies. I want to proof I am not as bad as they think. 
I might be in denial but I am healthy most females are.