opinions please

So just need other opinions any othet mommies who are very skinny and cant gain a pound when they eat and have barely any boobs? im 5'8 tall and im 22 years old and skinny my arms are skinny and long and i wanna wear dresses like this but afaird of being judge cause i have been my whole life and my whole family is skinny i only weigh 92 pounds and suppose to weigh 100 and something when i was pregnant i only gained up to 120 pounds . this is my first time wearing dresses but im very low self steam my boyfriend thinks im beautiful and so does my best friend and she is also skinny . so i just need to know what everyone else thinks. i just hate my body and my height.

and of course i have no butt or hips ...m