Important Disclaimer
The information provided here is for general pet health education only and is not a substitute for professional veterinary advice, diagnosis, or treatment. Never disregard professional veterinary advice or delay seeking it because of something you read here. If your pet is experiencing a medical emergency, contact your veterinarian or an emergency animal hospital immediately.
- Species & breed
- Dog · Bernedoodle
- Age
- 8 months old
- Sex
- Female
- Color
- Tricolor
It's great that you're thinking ahead — managing a first heat cycle can feel a bit overwhelming, but there are some practical steps that can make it much easier for both of you!
Diapers indoors — generally a good idea.
Dog diapers (sometimes called "heat diapers" or "doggy diapers") can be really helpful inside the house during the bleeding phase of the heat cycle. For an 8-month-old Bernedoodle, this phase typically lasts around 7–10 days, though it varies. A well-fitting diaper can protect your furniture, bedding, and floors. Just make sure to:
- Change the diaper frequently — at least every few hours — to keep the area clean and dry and reduce the risk of skin irritation or infection.
- Check the fit regularly, since puppies this age may still be filling out.
- Give her diaper-free breaks in a controlled, safe space so she can stay comfortable.
In the yard — a different story.
This is where I'd encourage some extra caution. A diaper does not reliably prevent mating. Male dogs are remarkably determined, and even a fenced yard isn't foolproof — dogs have been known to dig under or jump over fences when motivated by a female in heat. If an intact male dog gets into your yard, a diaper won't stop an unwanted pregnancy.
For yard time during her heat cycle, the safest approach is:
- Always supervise her directly — don't leave her outside alone, even briefly.
- Keep yard time short and purposeful (bathroom breaks, not extended play sessions).
- Be aware that her scent can travel a significant distance and attract male dogs from the neighborhood.
A note on spaying.
If you haven't already discussed spaying with your vet, this is a great time to bring it up. Many vets recommend waiting until after the first heat cycle is fully over before scheduling the procedure. Your vet can give you guidance tailored to Femke's size and development.
When to see your vet:
- If you notice any unusual discharge (foul-smelling, green, or gray in color), which can be a sign of infection
- If she seems lethargic, stops eating, drinks excessively, or seems uncomfortable or in pain
- If the heat cycle seems unusually prolonged (generally beyond 3–4 weeks total)
- If you suspect an accidental mating occurred — your vet should know right away, as there are time-sensitive options to discuss
- Routine check-in: it's worth a quick call to your vet now just to confirm everything is progressing normally for her age and breed
You're doing the right thing by being proactive — Femke is lucky to have an attentive owner!
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