I was in the depo shot for 2 1/2 years. Then about a month ago I changed to nexplanon. I havent had a real period for almost 2 years, just spotting for 1 day maybe every 4 months. I spotted from the 21-26 or so, which never happens so I don't know if it was a "real" period or not. The nexplanon was put in on the 22. My bf and I have had sex all during those times. The past week I have had sore nipples that are a lot of times hard, my breast may look a little larger but I can't tell for sure, and I have white discharge in my underwear. I know I should take a test and talk to my doctor but I would like some insight first. Could I be pregnant or is it just my birth control?