It’s my first baby, I’m 16+5 and have an anterior placenta. I’ve been getting a sensation of bubbles popping for a few days lower down my stomach, and a more obvious fluttering feeling this evening. It feels different to gas. Is this likely to be baby? I thought it would be much later with it being my first and anterior, but also aware that gas can be mistaken for movement 
Can I hear when you first felt movement, even just the flutters, if you had an anterior placenta?