Most dogs come in heat every 6-8 months. If she had a litter all ready you should skip at least one heat to make sure thier bodies both inside and out are ready. Most reputable breeders will skip 1to2 heats before they breed again.
I'm a happily married mother of 5, soon to be grandmother of 13. 12 is due in june, 13 due in sept. I love doing things outside, camping, hiking, fishing,etc. I love animals and seem to bring home everyhomeless thing I find. :0) But I always find them a loving home.