Is anyone feeling abdominal heaviness/bolting on the implant?

I got the Nexplanon implant about three months ago. I keep getting this bloated feeling and heaviness in my lower abdomen. I had a pregnancy scare right before I had the implant inserted so it's been freaking me out a little bit.

I feel like my stomach is growing but I've only gained 2-3lbs since getting the implant. Does anyone else get this?