Hello.., polycystic ovarian syndrome is the most common cause for irregular periods in these days. It's due to hormonal imbalance between LG and
FSH. Common symptoms are irregular periods, hirsutism, weight gain.. It's long term problem.. Reduction in weight shows significant improvement in pcos... Difficulty in pregnancy is common problem with pcos. Oral contraceptive pills regularise periods with minimal bleeding .there are many with pcos, don't loose hope, you can become
pregnant, if your heavy reduce your weight, do yoga, exercise, consult gynecologist for ovulation inducing tablets.