You're right Emz16, and its only natural that when a period is forced (like on ocp), instead of allowing a natural rythym, that sometimes your body loses more resources than it otherwise may. the end result being time required to return to normal. I do not condone the use of ocp, personally I think it is overprescribed, and its long term effects are underestimated, but, it is widely used so the issue really is how to treat those effects. Patience is certainly nessecery and i truly believe the wait can be shortened by consult with a natural medicine practitioner;-)
hang in there and let me know if you've any qns!