Thanks for sharing your story with us.
I have few suggestions for you.
Have a blood pregnancy
test. If this is negative you cannot be pregnant.
Give serious consideration to loosing weight & try to adopt an active life style.
This will increase your chances of having normal fertility
Your symptoms are also likely to improve, once a normal weight is achieved.
You should also plan an appointment with the doctor to exclude any medical problem like diabetes
, IBS etc.