Baby weight gain in womb?

Laura
Any advice for eating more during pregnancy? Currently 32 weeks and was diagnosed with gallstones as my reason for vomiting and nausea. My past 2 dr appt I've lost 10 lbs so my ob recommended me starting a protein shake in my diet once a day and I've gained 4 lbs back since my last visit. I had an ultrasound and my baby is a little on the smaller side and I feel so guilty from me being sick all the time when I have a gallstone attack. He's still in the normal weight bracket for how far along I am but I go back in three weeks for another ultrasound make sure he's still growing. I never had this issue my other pregnancies and I just want to do everything in my power to make sure he's as healthy as possible.