Good Afternoon, I Have Recently Taken Out The NEXPLANON. My

Good afternoon, I have recently taken out the NEXPLANON. My period came a day early and it was extremely light, it never became a "true" period for me. And it was much shorter than the normal. Only lasting three days instead of the normal 5 to 7 days. I am experiencing an increase in my appetite, my nipples are sensitive, im sleepy all the time, and my moods fluctuate up and down. I have taken three pregnancy test and all are negative. Did I test to early? Is it possible im pregnant? And when should I test again.