Every pregnancy is different but skinny women normally show sooner
Yes it's normal. It's all the bloating & constipation you get with early pregnancy. At 11 weeks your uterus is still behind your pubic bone. But it won't be long until you get a low "bump". It depends on your body type & weight. Usually by 16-18 weeks you will see something though.
Every woman and baby is different I was a size 12-14 and I only looked bloated till I hit 32 or 34 weeks When I started showing and I went from weighing 171 till 178 my hole pregnancy..so not everyone gets the belly or gains that much in your hole pregnancy xxx