i am on the depo shot, iv been on it since october 1st, me and my boyfriend were having sex at least 4 tiimes a day with him cumming in me each time,the day i got the shot we had sex he cam in me, we had sex every day muiple times a day for a few weeks after, im having HEADACHS, back achs, and im out og energy where i sleep all the time, every food makes me sick, i usually throw up about once a day, could i be pregnant? im very moody and emotional,