I lost weight in my first trimester due to severe vomiting, so my belly only started growing after the 5th month when I could finally eat. Don't worry if you don't show early, every body is different.
Beta, usually the baby bump starts showing after the 4th or 5th month. Till then, take care of your digestion and apply some warm coconut oil gently on your stomach to prevent future stretching.
It completely depends on your body type, height, and whether it's your first pregnancy. Generally, first-time moms start showing around 16 to 20 weeks, but consult your doctor if you have any concerns about growth.
My bump didn't show much till the 6th month because of my body structure. Since I had thyroid issues, I was super regular with my scans to make sure baby's growth was on track.