Thanks for your query.
After coming off the Depo, it is common to miss your period for upto 3 - 6 months.
You could still get pregnant with the pre ejaculatory fluid, which does contain live sperm.
The effect of the Depo is not reliable now, since you are off it.
You could theoretically fall pregnant.
If you do not have your period within a month, take a pregnancy
test to be sure, and use a reliable method of contraception
All the best.