text: i have gained 30 lbs in the past eight months, what should i do? i am 21, married in may, recent miscarriage, and trying to conceive try to do sth else except just eating :p.......... j/k well decrease the amount of carbohydrates in ur food. and avoid fats too. avoid cold drinks and better use diet ones.. and dont dec the freq of food rather try to dec the amount or try to dec the calories being taken. and do some activity.