Is my weight pretty bad opinions would be appreciated

Hello I'm a 20 year old female ttc and I think my weight is bad I've been tiny my whole entire life it's been hard for me to gain a few pounds im 4'9 and weigh 82 I know it sounds pretty bad but I asked other people's opinions they said your fine ur just I've started drinking ensure to help but it will only let me gain like a pound or 2