Womens help: OMG! i m freakin?

ok so is thi normal? i stoped my seccond period i have ever had in my life a week a go but i loved just a few minutes ago and i have like a browish blood on my under wear what is it ??? i aasked my mom and she said thatit is problay just extra that my body is getting rid of cuz my body is new to this is that wht it could be???