how would you know?

Nikita

last month I had my period 22_26 it was over then on the 9th I was cramping a little and the morning on the 10 I saw a little blood and this skin like thing came out?? do any one know what that could have been any why??? this time my period was late and I hurt for 3days and it was light cycle.. any one help me or do I need a doctor thought his might be common