I Have Had A Increase In My Estradiol Level To

I have had a increase in my estradiol level to 68 pg/ml, what does that indicate? I'm having post menopausal bleeding and trying to figure out what's going on. All of my many other blood test are normal. my uterine biopsies indicates not menopausal but the blood work does ... Uterine U/S shows 14 mm on uterine wall. your thoughts?...