Hello im richard, 23 years old i have a question about my girlfriend, she is 19 years old she is regular when it comes to her period but recently she had her period already to be precise, her period ended 6days ago, but now when she woke up, her tummy hurts and she told me shes having her period again, what may be the cause of it? I have read online and everyt single cause for bleeding in between menses wasnt good. She told me it may just be stress but i dont thunk so.. Help me?