Switched from Implanon to Loestrin Fe (April 24, 2014). Did not take pills at the same time every day. I am experiencing cramping, bloating, nausea, dizziness, and cravings. My LMP was May 3, 2014. I have yet to receive my period. I have taken a home pregnancy test and recieved a negative result. Could I still possibly be pregnant? I am concerned because I am also a Type I Diabetic and know that I need to seek prenatal care As soon as Possible.