Help ladies !!!!

Aarika

Ok so this might sound weird but i was on depo from 2014-May 2018 and that whole time i got cramps like i had a normal period never missed a month & occasional bleeding to go along with it. I got my first period december 2018 and that fell on my normal period pattern (That’s what i call it). and here comes january 2019 and NOTHING !!!!! NO PERIOD , NO CRAMPS , just 2 days of light spotting !!! & sore breast 🤦🏾‍♀️! Idk what to do ??? i’m technically 3 weeks late , and i’m not saying it’s impossible to get pregnant this fast because everyone’s body is different but i don’t think i am, should i test to be safe ??