need help! preg??

so okay basically I’m just going to lay it out there. I had raw sex with my boyfriend about a week or two before I got my nexplanon. But that was about a month and a half ago and I’m having extreme cramping , so emotional I literally cry about anything , and I’m sleeping all the time. I also have no period. And this could all be side effects of my BC method, but my mother said something to be about it so it got me worried. Opinions?