I am 23 weeks with my third and barely showing at all.
I didn't show till 18-19 weeks
everyone is different,this is my 2nd pregnancy. with my first one i didnt barley show until like 5 months, i didnt tell my boss until i was about 7 months and.couldnt hide it anymore haha also ive read that usually it takes longer to show with the first one because your stomach muscles are still strong, they get kinda stretched out after the first one, yay! haha but some women barley show or put on weight at all during the whole pregnancy. i wouldnt worry about it you are still really eArly in your pregnancy good luck!
Its cammon around the 15-18th week.