Bloating and bumps

Anna • 35. First baby born March 2017 ❤️
Just out of curiosity, when do people get their bumps when pregnant for the first time? What is like the average timeframe for that?
I'm now 11 weeks and have had a more pronounced belly since 5 weeks. But is it just bloat? Today somehow the belly is gone - could it be that it was just bloat?