Im on the pill implant.. and i've been having very sore breast could i be pregnant?

Take a test!: Always better to be safe and take a test. An over the counter test is most accurate at least 14 days after conception. Having said that, the implant can give you hormonal breast symptoms, and alter your periods: make them irregular, early, late, or lighter than normal.

Unlikely: implants are effective unless expired. If concerned consider home pregnancy test