I took depo in may24 I had my priod in aug7 in sept I had very light spoting and crampimg for 3days can I be prangant

Most likely due to the depo, which can change cycles for many women. Was the May injection your first and you are now passed due for the next one, or was it your last and you are trying to become pregnant?

Try a pregnancy test, if negative, see what happens when your next period is due.