I'm curious. I already have 2 children. I was on BC (implanon) for 3 years n it just expired December 1st. I have had unprotected sex after this time. I haven't gotten my cycle for December n still haven't gotten it. I have spotted light pink blood, cramps, lower back pains, headaches, lots of discharge (white), and I always hungry. I took 2 hpt n they both were negative. Is it a possibility it was wrong r did I take the test too nearly