Ways to gain weight?

Ka

LO will be a year old in less than 2 months. My initial plan was to breastfeed until his first birthday and I am currently still breastfeeding but I am getting concerned for myself as pre-pregnancy I weighed 110, at my heaviest point in pregnancy I was at 150, and now I weigh 101 lbs…what are some things I can do at this point that do not include weaning?