I Have been on the shot since September. I am due for my next shot next month. Just recently while having intercourse we usually us the pull out method but this time we didnt. Its only about a week later n I have had diarrhea for 3 days, been spotting and cramping, and have been sleeping a lot lately. Is this just a side affect to the shot or something more to worry about? This is the first to experience all this at once