18 weeks, bikini shot!

Destin • Pregnant with a rainbow baby ! Angel baby : (Olivia Jade)
So before I got pregnant, I was always so tiny. I weighed 112 before I got pregnant and Im 5'2. I'm sooo used to being so tiny and being able to fit into whatever I want but lately I feel so uncomfortable and self cautious as to who sees me in a bikini and I haven't gone swimming this summer yet but Saturday my boyfriend and I are going to the lake for my grandmother's bday and this'll be the first time I'm being seen in public like this. I'm so happy to be carrying this baby but idk I just feel so uncomfortable. Also, do I look too big for 18 weeks?