Thanks for query,
Your gynec is treating you rightly.
Due to Depo your hormonal
imbalance leads you delayed periods so she has given you primolut N
& you gets withdrawal bleed.
Now to regular your cycle she is giving training to your body by mimicing normal cycle by giving OVACARE for continous 3 months.
after that hope you gets normal ovulation & normal periods then you can conceive normally.