I just had my first son jan 6th 2012. Got the implant in my arm (birth control)at the end of feb. have had one period sense, I have cramps, I can't loose weight, I feel pregnant, plus I feel kicking and moving, did have sex just 3 weeks after having my son unprotected, took 2 negative test... I feel pregnant. I have mood swings, cravings, cramps, my nipples r larger... Help am I pregnant?

