Im 23, I'm married before 6 months. Im lean, I have tried lot of medicines and foods before marriage... But there is no any use in it. But now we are planning for a pregency and my husband forcing me to become fat. I have tried as much I can, no any use. Please suggest me to become fat without any side effects.

There are none... being fat CAUSES the side effects.

High blood pressure, diabetis, arthritis, Heart Disease... and that's just to start with.