I recieved my first depo shot in september. My doctor said I most likely wouldn't have a period, since I had been on the shot before and never had a period but .I got it while I was on my period and the bleeding stopped and it hasn't come back. I had unprotected a week after I got the shot and I've had cramping and some white discharge. Is this normal or is there a chance I am pregnant? (It's been a little over a month since I got the shot)