Progesterone not kick start your period?

CJ🦂 • I’m Cam 👨🏾‍🦱👱🏼‍♀️👶🏽👼🏽🤰🏼

Hey guys so my obgyn gave me the progesterone shot (oil) and they told me 1-10 days until my period would start. It has been 6 days. Has this ever happened to anyone else? I'm afraid it's not going to work. What is your experience with this shot?