Hello, I m an 18 year old female and this is a sexual health question. Normally before my period my breasts get tender and I feel tired and moody and then I have a heavy flow and sometimes my period is late no more than a week. I am sexually active and my period was late by one day and the day after I had the contraceptive implant put in ( 3 days ago) and I have since not had my period. I ve been using condoms as a contraceptive previously and I am worried that I am in fact pregnant or is it possible that the side effect of not having a period whilst with an implant hs already started working? If you could let me know that would be great.