A lot of people have asked me about pregnancy, fetal growth and how I care for my pregnant bitches. I thought I would add this page to give some insight and answers to those questions. I hope to add pictures to this timeline at a later date. Hopefully this will answer some questions most of you have asked me.
***Note: Sperm can stay viable in a bitch for 3 to 5 days after a breeding, therefore I am assuming for the dates that conception occurs at the time of mating.***
(Day 1 to 7)
Puppy Development
Fertillization occurs
2 cell embryos are in the oviduct
Embryos are fairly resistant to external interference in development
Noticable Changes in the bitch
Possible personality changes
Possible morning sickness
Possible increased or decreased appetite
Possible increased tiredness
Care of the bitch
Check with your vet before giving ANY AND ALL MEDICATIONS!!!!!
DO NOT GIVE ANY INSECTICIDES (i.e. flea & tick treatments)
No live vaccines
Normal feeding with a hard boiled egg and a tablespoon of cottage cheese or yogurt added in
Normal exercise (NOTE- if your bitch did not receive any, you should start to slowly build her up to a moderate exercise regimen every day)
(Day 8 to 14)
Puppy Development
At the start of the week embryos will be at 4 cells and be at 64 cells by the end of the week
The embryos will enter the uterus
Noticable Changes in the bitch
Same as week 1
Care of the bitch
Same as week 1
(Day 15 to 21)
Puppy Development
Day 19- Embryos will implant in the uterus
Noticable Changes in the bitch
Same as week 1
Care of the bitch
Same as week 1
(Day 22 to 28)
Puppy Development
Organogenesis begins- Embryos will be at the point where they are most suscepible to defects
Fetuses will grow from 5-10 mm to 14-15 mm by weeks end
Faces take shape
The eyes and spinal cord will devlop
Days 26- 32 are the best days to palpitate (feel) for puppies ***Note: Please only let your vet palpitate! An inexperienced person can cause damage and death to forming puppies!***
Noticable Changes in the bitch
The bitch may expeirence clear vaginal discharge
Development of the Mammary glands begin
It may be possible after day 26 to have your vet palpitate to diagnose a pregnancy
Care of the bitch
Limit or cut out all strenuous activity (i.e. jumping, long runs, working, etc)
Increase the cottage cheese or yogurt to 1/4 cup
Things to do
Schedule an ultrasound to confirm pregnancy with your vet (I find between days 32-36 are best to determine litter size and health)
(Day 29 to 35)
Puppy Development
The development of toes, whisker buds, and nails
Gender can be determined
Fetuses now look like dogs
Eyes were previously open are now closed
Fetuses will grow from 18 mm to 30 mm
Organogenesis ends- Fetuses are now fairly resistant to interference with development
Noticable Changes in the bitch
Swelling will become noticeable
Bitch will lose her "tuck up"
Her weight will start to increase
Care of the bitch
Due to the added abdominal fluids, palpitation is no longer possible
Slightly increase the amount of kibble your bitch is getting
(Day 36 to 42)
Puppy Development
Skin Pigment will Develop
Fetuses should be approx. 4 mm long and weigh around 6 grams
Fetal heartbeats can be heard when listening with a stethoscope
Noticable Changes in the bitch
Your Bitch's nipples will darken and enlarge
Her abdomen will continue to enlarge
Care of the bitch
Increase the cottage cheese to 1/2 cup a day and a hard boiled egg
Add an extra meal mid-day
To do list
put whelping box up
start gathering supplies
(Day 43 to 49)
Puppy Development
Puppies continue to grow and develop
Noticable Changes in the bitch
Bitch's adomenal hair will start to shed
Bitch will look pregnant at this point
Care of the bitch
Slightly increase meals
Things to do
Make sure the bitch is no longer "roughhousing", jumping, running, etc.
Schedule appointment for x-rays (x-rays should be taken after day 50 to determine number and size of puppies)
(Day 50 to 57)
Puppy Development
When the bitch is at rest fetal movement can be detected
Puppies can be safely born from this point forward
Noticable Changes in the bitch
Milk can be squeezed from the nipples (It may be yellowish. This is colostrum)
The bitch will be quite large at this point (Large dogs carrying one or two puppies may not show signs of pregnancy)
Care of the bitch
Make sure she eat 3 moderate meanl a day
Things To Do
Make sure you have all your whelping supplies in order and ready to go!
Prepare a phone list (include your "helper's" number, your vet, emergency vet, etc)
Make sure you gas up the car and have it ready for emergencies!
Puppy Development
Puppies will continue to grow and develop
Noticable Changes in the bitch
Puppies getting close to making their arrival:
The bitch may start nesting behaviors
Bitch may "become or look" distressed (panting, pacing, or acting uncomfortable)
Her temperature should hold around 100.2 - 100.8 degrees farenheit (You will notice some temperature fluxing)
Once her temperature drops to/below 99.0 degrees farenheit puppies should be born within 24 hours time (Please keep an eye on the bitch's temperature because once it drops it does not nor should not stay there, but rather start to climb again.
***NOTE: If her temperature falls below 98 degrees or above 102 degrees GET YOUR BITCH INTO THE VET!!!!!!***
Care of the bitch
Start taking your bitch's temperature 3 times a day
Things to do
Double check your whelping supplies!!!
Notify youe vet and emergency vet clinic when her temperature drops below 99 degrees to put them on noticy that puppies are coming, just incase a problem crops up!
Keep a detailed record of your bitch's temerature and behaviors
Once puppies start to arrive also keep detailed records of times the puppies have arrived