When will i show

Cynthia
I am 5'7 and weighed 186 pre pregnancy. I've lost 6 pounds in my first trimester and now I'm 15 weeks weighing 183. I'm wondering if I'm ever going to have my baby bump. I already have stretch marks on my lower belly from what could only be the baby but still feel like I just look chubby, not pregnant. Will I start showing?