Haha, with twins, my bump popped by the end of the 3rd month itself! I looked 6 months pregnant when I was barely 3. If it's a single baby, it usually takes till week 16 or 20, so don't compare your belly with anyone else's.
In my experience, the belly started popping properly around 18 to 20 weeks. It's a gradual process, so give your body some time to adjust. Just nurture yourself right now, eat well, and stay hydrated, your little one is growing beautifully inside.
In my first pregnancy, my bump didn't show till almost 5 months, but with my second one, I was bursting out of my jeans by week 12. Your muscles are already relaxed the second time, so it's much quicker. Don't worry about size, as long as your scans are fine, you are doing great.
Normally, first-time moms start showing between 16 to 20 weeks because the abdominal muscles are tight. If it's your second pregnancy, it might show much earlier. It all depends on your height, build, and uterus position, so there is no fixed standard date.
For me, the bump started showing around the 5th month, which was actually practical because I could easily wear my regular office kurtis till then. Don't stress if you aren't showing early, every body is different. Just focus on your work routine and wear comfortable clothes as you transition.
Honestly, mine started looking bigger around week 14, but I think half of that was just bloating from all the pani puri and biryani cravings! The actual baby bump started popping around the 5th month. Enjoy your food and don't worry about the tummy size too much right now.
I felt so anxious waiting for my bump to show because I wanted to feel pregnant! It finally started showing around week 19, and I felt so emotional when I could actually see a tiny round tummy. It's such a beautiful feeling when it finally happens, just be patient.