Birth Control

Shanna

If the last time I had a birth control shot ( Depo ) was on October 11, would then next shot be in January? And also I was thinking about just getting of off depo because I have been feeling really nausea and light headed but how long does it take for your period to get on track! I only been on depo for 5 months and I seem to be getting my period every month still so would I have to worry bout my period being irregular ?