The beginning
Vulvar swelling, bloody discharge, increased licking, more frequent urination, restlessness, or new interest from male dogs. She may attract males before she is receptive.
THE HAUS GUIDE / INTACT FEMALES
Her first heat.
Calmly handled.
A practical guide to what you may notice, what you will need, and how to prevent an accidental breeding from the first sign through the end of her cycle.
TYPICALLY 3–4 WEEKSEVERY FEMALE IS DIFFERENT
BEGIN HERE
Assume she can
become pregnant.
The safest approach is to treat the entire heat cycle as fertile. Timing varies, outward signs can be misleading, and a diaper does nothing to prevent mating.
From the first swelling or discharge, keep her physically separated from intact males and under direct control outdoors. Continue until every sign has resolved—and longer if your veterinarian advises it.
WHAT YOU MAY NOTICE
The cycle,
at a glance.
These stages describe a typical pattern, not a calendar you can use to predict fertility safely.
The fertile stage
Discharge may lighten and she may “flag” her tail or stand for a male. Do not use color, behavior, or a day count as proof that she is—or is not—fertile.
After the visible heat
Swelling and discharge recede, but hormonal changes continue. Watch her closely in the following weeks for signs of pseudopregnancy or pyometra.
THE NON-NEGOTIABLES
Management prevents
accidental litters.
- 01
Leash every potty break—even inside a fenced yard. Do not rely on an invisible fence.
- 02
Skip dog parks, daycare, training classes, shared yards, and off-leash outings.
- 03
Use two secure barriers between her and any intact male in the home. A closed crate alone is not enough.
- 04
Check gates, doors, screens, and fencing. Never leave her outdoors unattended.
- 05
Use heat pants only for cleanliness. Remove them for potty breaks and never treat them as contraception.
- 06
If mating may have occurred—or dogs become tied—call your veterinarian promptly. Never attempt to pull tied dogs apart.
KEEP ON HAND
A simple
heat-cycle kit.
Washable heat pants
Have more than one pair so a clean option is always ready. Fit should be secure without rubbing or restricting movement.
Absorbent liners
Unscented pads or liners make changes easier. Replace them frequently and keep skin clean and dry.
Washable layers
Cover favorite beds and furniture with blankets that can go straight into the wash.
Enzyme cleaner
Useful for floors and soft surfaces if spotting occurs outside of her pants.
A secure leash setup
Use equipment she cannot back out of, and confirm identification and microchip details are current.
A written plan
Make sure everyone in the household knows the rules, dates, barriers, and veterinary contact information.
EVERYDAY CARE
Keep life familiar.
She may be clingier, quieter, more distracted, or more restless than usual. Offer normal exercise in controlled places, gentle enrichment at home, and the space or closeness she asks for. Appetite and bathroom habits may shift slightly, but she should still seem like herself.
WHEN THE CYCLE ENDS
Record it.
Reset carefully.
Note the first and last visible signs, changes you observed, and any veterinary concerns. Do not resume normal contact with intact males simply because bleeding has stopped. If you are unsure whether the cycle is over, ask your veterinarian.
Veterinary foundation: UC Davis School of Veterinary Medicine and its guidance on pyometra. This guide supports—but does not replace—care from your veterinarian. Cycle length, fertility, and medical needs vary by dog.