Hi
Im sorry that wasnt the news you expected.
Please rest assured that although it is low, this doesnt mean you wont produce eggs and therefore get pregnant.
AMH is your ovarian reserve, its what you are born with, so weight or lifestyle choices is not the reason why its low.
Also, you definitely have more than a few months or a few years. Nobody can know when, but i have a friend who's level was much lower than yours. She had 4 attempts of IVF and had a daughter on her 5th attempt. She is now 40 and has had a further 2 children naturally. She received her levels and was told she would never conceive naturally (i understand naturally isnt an option but im emphasising on the fact you can still have children with a low AMH level)
Good luck