I'm just over 21 weeks pregnant and was told by my midwife that the placenta was at the front so could be hard to feel baby the move due to this. Today I have movement but not sure if baby or if it's gas. Sometimes I know when it's gas but this time it's on the right of my stomach not on the side. It starts and lasts for a few minutes then stops again. It feels strong. I'm pretty sure it's baby moving but just wanted others opinions if they have felt this before?