I've been on the implanon for almost 2 years now and I'm 21 years old. I've never had a period while I've been on the implanon. Well 3 weeks ago I had sex and now I'm spotting which is a pinkish reddish color with a little bit of brown and I'm getting lower back pains,abdominal pains, and migranes. I've also been sick for a week & 2 days now with fevers through out the day and I've been taking medicines that are not working. Should I make an appt with my doctor?