What is a good diet to use when trying to conceive? how much exercise is to much? i have one tube left,i want to be fertile as possible when i can try

Go for it: A balanced diet with plenty of fruits and vegetables. Daily exercise of moderate degree lasting at least 30 minutes (walking the dog counts!). One tube is enough. Don't try too hard - just hard enough. If you're not taking folic acid, you ought to be! (even before conception to reduce the risk of neurologic birth defects). Good luck to you!