So I do have the contraceptive implant and because of this me and my boyfriend have been having unprotected sex, I've had my implant for nearly 2 years now and I've always been very weary of it due to my boyfriends sister getting pregnant when she had it Lately I have been feeling very nauseous, have many head aches, my back has been aching a lot, my ankles hurt, my breasts and especially my nipples are very tender, I have been having random food cravings and a lot of mood swings! Am I pregnant? Should I go to the doctors and get this checked over or am I worrying for nothing?