Haven't gained any weight this whole pregnancy HELP!

So yesterday at my doc appt I asked how much weight I've gained and she said I haven't gained anything, I've actually lost weight. I was 154 post pregnancy now im 134. I was super sick in the first and second trimester during the mornings, but I could keep food down during the day. I eat very healthy and always keep snacks in my purse. I eat tons of cheese, yogurt, multigrain bread, peanut butter, nuts, apples, banana, etc.

Any tips on what I can do to gain weight??

I'm freaking out and feel like I'm failing my son. I really need some reassurance and positive vibes from other moms.

**If you have a similar situation, I'd love to hear about it.

And yes, my baby is measuring on track and so is my belly! 🙏