Hi,
Welcome to ehealthforum.
It is difficult to comment on the cause for the abnormal bleeding that you describe and on your fertility level without examining you. Possibilities of ovarian problems, infections, cervical dysplasia, bleeding disorders etc., cannot be ruled out. The exact cause can only be made out after careful evaluation. Consider visiting your doctor/gynecologist for thorough examination and further evaluation to look for the underlying cause for the abnormal bleeding that you describe. Treatment as needed (based on examination findings and investigations results) would be started to help you control the bleeding and regulate your periods. If pregnancy gets ruled out, and if you are not ready for pregnancy, but intend to remain sexually active, you should consider visiting your gynecologist to get started on suitable regular birth control measures to be protected (after your periods). Consider being in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately. Drink plenty of water. Take adequate rest. Maintain healthy diet and lifestyle.
Take care.