Sue,
I know I may be a bit young to be replying to this post but over the years of being on Methotrexate I was always curious about myself and my goal to have children in my future. I did alot of research and asked the doctors questions.
I think that might be your best chance to get the most valid information.
I know that you are suppose to come off it for awhile to let it wash out of your system, maybe even find some herbal remedies to cleanse your system.
Methotrexate is used in Early Abortions, which is why woman taking methotrexate are advised it is best to be on some sort of birth control because if you aren’t and you accidentally become pregnant your body, along with the methotrexate will automatically cause a chemical abortion in your body.
I’d just suggest coming off the methotrexate for about 6-8 months to make sure it is completely out of your system, and perhaps look into some sort of a cleanser to clean your organs out of it because it can build up if you’ve been on it for long periods of time.