Adderall prescription?

I was prescribed 20 mg per day 10 when i go to work (6am) and 10 at noon. Ive been on it for a week and I always take it on an empty stomach but I've noticed that no matter how hungry I am when I take it I completely lose my appetite after it kicks in. Will taking it with a meal lessen the effects? Is there any other side effects I should worry about? Anything related to fertility? I don't want to reduce my chances of a mini me!! Thanks in advance!!