Your symptoms suggest hormonal imbalance and probably you are suffering from polycystic ovarian disease
which is a common cause of infertility
. Your metropathic cycles and the fact that you conceived following depot injection go in favor. In such a case, natural conception is rare and you need assistance. I advice you to see a gynaecologist who can investigate you properly and put you on the necessary treatment. Your miscarriage
could have been due to progesterone deficiency
(likely in your case). Wish you good luck.