Breed guide
French Bulldog Breeding Guide: Litter Size, Whelping, Puppy Weights and Health Testing
Updated September 6, 2026 · 6 min read · By the BreedBloom team
French Bulldogs are among the most in-demand companion breeds and among the hardest to breed responsibly. Most matings are by artificial insemination and most litters are delivered by planned caesarean, so timing, veterinary partnership and neonatal care carry the whole program.
French Bulldog at a glance
Typical litter size
2–4 puppies (average around 3)
Birth weight
8–12 oz (230–340 g)
Adult weight
16–28 lb (7–13 kg)
Gestation
About 63 days from ovulation (57–72 from breeding)
Whelping
Caesarean delivery is the norm in this breed because of the puppies' head size relative to the dam's pelvis. Plan the section with your vet from the progesterone-timed due date; do not wait for labour to start.
Breeding and whelping notes
Progesterone timing is essential: a caesarean scheduled a day early produces puppies that cannot breathe well, a day late risks a dam in obstructed labour. Most surgeons target 62–63 days from ovulation.
Newborns are small and need a warm, draft-free box. Aspiration during the first feeds is a common problem in brachycephalic neonates; elevate the head and feed slowly if supplementing.
Airway: both parents should be able to exercise in warm weather without distress. Breeding two heavily affected dogs is the single biggest welfare issue in the breed.
Exotic colours (blue, lilac, merle) are not accepted in the standard in most registries and carry their own health baggage (colour dilution alopecia, merle-related defects). Disclose colour genetics honestly.
Health testing before breeding
•
Hips: OFA
•
Patellas: OFA
•
Cardiac exam
•
Eyes: annual CAER exam
•
Spine radiographs for hemivertebrae in many programs
•
BOAS (airway) functional grading of both parents
•
DNA: DM, HUU (hyperuricosuria), JHC (juvenile cataract), CMR1, and colour testing where relevant
Keep the paperwork attached
Test results are only useful when they travel with the dog. Keep certificate numbers and dates on each dog's record and include copies in every go-home packet.
Tracking a French Bulldog litter
Enter the ovulation or tie date and BreedBloom builds the French Bulldog litter timeline: ultrasound window, X-ray count reminder, temperature checks, the day 3–16 ENS/ESI schedule, deworming and vaccination tasks, and per-puppy weight curves you can compare against the whole litter. Families follow along in the BloomPetz portal, and the go-home packet is assembled from the same records.
About these figures
Figures on this page are typical ranges drawn from breed club and veterinary references; individual lines vary. Confirm health-testing requirements with your breed's parent club, and whelping plans with your reproductive veterinarian.
Frequently asked questions
How many puppies do French Bulldogs have?
Usually 2–4. Litters of one or five occur. Small litter sizes are one reason the puppies are expensive.
Do French Bulldogs need a C-section?
In most cases yes. The puppies' heads and shoulders are large relative to the dam's pelvis, and free-whelping frequently ends in obstruction. Plan the section from progesterone timing.
Can French Bulldogs breed naturally?
Some can, but artificial insemination is standard because of conformation and the risk of overheating during a tie.
Run your program on BreedBloom
Dogs, litters, puppy weights, ENS/ESI tasks, waitlists, contracts and go-home packets in one connected record, with a family portal built in. Free for up to 3 dogs.
© 2026 BreedBloom. All rights reserved.
Privacy Policy
·
Terms of Service
Contact support@breedbloom.com