I have never had a period since being on nexplanon, not even a little spotting. here in the last week I've had this feeling in my lower abdomen, like where my uterus is, it's like a trapped gas pain but I have taken gas x as much as I can so I know it's not that. I don't have any pain while urinating or no smell or anything. It's not even like a bad bad pain it's just annoying and uncomfortable feeling. I'm trying to explain as best I can. I hope someone can help me out. Thanks.