Weight Concern

I’m 87 Ibs. & 4’11, I’m 22 years old and was just wondering if there are other small women like me that have successfully conceived & delivered healthy babies??? I was pregnant but had a loss at 3 months & had gained 3 pounds so I weighed 84 before & I’m nervous for future pregnancies since I am so tiny!

Edit: my doctors didn’t tell me anything about my weight, they just told me how often to eat and what to eat but were never really concerned with my weight. Also I have a fast metabolism so it’s not that I don’t eat, it’s hard for me to gain weight it’s in my genes. My original question is if you’re my size & have had healthy babies? Thanks in advance 😊