Female Schnauzer on Heat - need some advice please

by Lauren R.g.
(Spfld,MA)

I have a 6 month old female Schnauzer & this morning I woke up & found a blood trail & linked it back to my her. Its the first time she has been on heat & she is my my first puppy.
Im confused & need some answers. So my question is:
How long does a 6 month old Schnauzer get her period for?
If I get her spayed is it going to stop her from coming on to heat any more?