My gf had her Implanon birth control removed about 3 weeks ago and she hasn't had her period in over a month. It's been normal for the 3 years she had it in to go months without having her period and then having her period for long amounts of time. So my first question is whether it's normal for her to still not have her period after being off the birth control for 3+ weeks? Pretty sure she's not pregnant as a home pregnancy test showed negative and we haven't had unprotected sex since it was removed. She's also experiencing several symptoms which I believe are hormone related: night sweats, body aches, headaches. It's not the flu so I'm thinking hormones. My second question is whether her hormones will regulate themselves or does she need meds to help the process? I'm familiar with taking synthetic hormones and then needing post-cycle therapy to get the body to produce the hormones again, but only in males which is why I ask. She hasn't been back to her doctor since having it removed and her doctor believes she's on the pill so this hasn't been discussed.