sex 7 days before but its bleeding till today?

Hi,
Welcome to ehealthforum,
If it was your first time sexual encounter, the bleeding could be attributed to hymen rupture which should have subsided within 48-72 hours. If the bleeding has been persistent, then it could suggest possibility of internal injury, vaginal or cervical tear, infective causes, hormonal imbalances etc. The exact cause can only be made out after careful evaluation. Consider visiting your doctor/gynecologist at the earliest for thorough examination and further evaluation to look for the underlying cause for the symptoms that you describe. Treatment as indicated (based on examination findings and investigations results) would be started to help you control the bleeding and regulate 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.