Curious

So I had went and got my birth control implant around March of this year. Me and my boyfriend have been talking about having a baby. So I went and gotten my bith control out almost a week and a half ago. And of course we've been having unprotected sex and he hasn't done the pull out method. Now I'm wondering when will I have a period and why is my nipples soo sensitive and I'm cramping but no bleeding. I've cried like 6 times already. Could this just me still gaining control of my emotions or could this mean something is wrong? I've had weird cravings and sleep all day as of right now