Well i have a sister that thought she couldn't get pregnant also, it took her a long time, but GOD has given her a daughter, and she is now 11 years old.
She is my fav niece, and i nor anyone else in my family could imagine what it would be like if GOD would have not blessed my sister with her, the only thing that we have to look out for with her is, that she is a prankster, she jokes and plays practical joke all the time.
I'm sure when the time is right, GOD will give you children also.
I also know someone that i''ve grown up with, and they said she couldn't have children, but she has a son now, and i'm pretty sure she was pregnant again.
So pray to GOD, i know it sounds stupid but it's the only way, and keep seeing your doctors also.