what is the soonest you felt the baby move?

Brittany • Married 102916💍 Bryson Ray 032417👶🏼💙
I am 16 weeks & 2 days. At 16 weeks exactly with my FIRST, I was laying in bed on my right side, when all the sudden I felt this tumbling motion on the left side of my stomach followed by flutters. I am convinced it was the baby. I tell my husband and he says it's too early. I am a bigger women so I didn't expect to feel it this soon, but it was simply amazing. 
So, what is the soonest everyone felt their baby move with their first pregnancy?