Hi,

Don't worry this is also very normal. The reason it is only on one side is most likely because that side is the side you ovulated from and then the baby implants sorta to that side (not ectopic). I was worried about the exact same thing but my baby is exactly where he/she should be!!! I would still go to the dr to get that medical opinion...that should help with the stress. But try to be calm it is definitely normal!!!!