Birth Control/ Crazy Mama

What is the Nexplanon implant like? Im 16, my mom and I are very close and share a room, but she does not want me being sexually active. I’ve been sexually active for about 5 months now (i use protection) with my boyfriend of 11 months. I want to take the pill, but Im afraid my mom will catch on and see the pills, Im not sure where to hide them. Although I use condoms I still feel like its not enough. I really am paranoid with these things, I don’t plan on getting pregnant nor want to be anytime soon, so What Are The Side Affects Of the Implant?! I’ve heard both good and bad. Please HELP!