Well a first heat cycle should last on average 3 weeks. She may be very agresive or be completley affectionate toward you. There should not be too much blood just spotting really.
Its best to line her fave seating areas with a newspaper or somethng to catch blood.
Also for exercising her take her to a very remote place and keep her away from other dogs. Remember any dog at all ( if not fixed) will try and get to her. They may very easily jump over something that usually would not have been thought possible. Don't Leave her in a garden or whatever on her own. Keep a very close eye on her!!!
Just a bit of advice that I have picked up when doing my research!!!
Its best to line her fave seating areas with a newspaper or somethng to catch blood.
Also for exercising her take her to a very remote place and keep her away from other dogs. Remember any dog at all ( if not fixed) will try and get to her. They may very easily jump over something that usually would not have been thought possible. Don't Leave her in a garden or whatever on her own. Keep a very close eye on her!!!
Just a bit of advice that I have picked up when doing my research!!!