Female dog in heat?? Need reassurance...?

Watch when she urinates to be certain there is not blood in her urine. Also, be certain she does not have a fever. Rule those out and she is probably in season. Buy some doggie pants at Petsmart or Petco and some mini pads to keep the mess to a minimum. Be absolutely certain she cannot escape, get next to a fence for a male encounter and an intact male cannot get anywhere near her. Be prepared for intact males in your front and side yard. Those at a distance may also bark and sing to get her attention. Keep an eye on your neutered male as he may try when she is receptive.