FTM with anterior placenta

Rachel

Hi ladies! I am 20 weeks today! I woke up and ate a banana with some orange juice - i sat down and put my feet up and had my hand on my belly - near my belly button and a little lower - I felt a muscle spasm like a quick twitch - under my belly button in the front - could that be baby?? Or something else ? 🤷🏻‍♀️