Hello doctor I have been taking depo provera for 6...

When does the menstrual cycle  come after stopping OCP ?
It can take a while for your periods to come back after you stop taking the pill. Most women will have a period around 2 to 4 weeks after stopping the pill, but this depends on you and what your cycle is normally like
What does the first bleed mean ?
The first period after stopping the pill is known as a "withdrawal bleed". The next one after this is your first natural period
What might happen for your period after stopping the pills ?
Your periods may be irregular when you first come off the pill, and you should allow up to 3 months for your natural menstrual cycle to fully re-establish itself
What are the factors that may affect your period ?
There are different factors that might affect your cucle such as weight, health, stress, exercise and conditions such as polycystic ovary syndrome 
Are you trying to get pregnant ?
If you're trying to get pregnant, it's a good idea to wait until after you've had a natural period. This gives you time to make sure you're in the best physical health for pregnancy

What is depo provera ?
It's an injectable form of progesterone which used for birth control