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Stages of Pregnancy

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Week One

 

DEVELOPMENT OF THE PUPPIES

Fertilization occurs

2 cell embryos are in the oviduct

The embryo is fairly resistant to external interference in development

 

CHANGES IN THE MOM

Possible morning sickness

Possible personality changes

 

CARE OF THE MOM

Normal feeding

Check any and all medications with vet prior to administering

No insecticides (i.e., flea treatments)

No live vaccines

 

Week Two (Days 8-14)

 

DEVELOPMENT OF THE PUPPIES

Embryo will be 4 cell at start of week and 64 cell by end of week

Embryo enters the uterus

 

CHANGES IN THE MOM

Possible morning sickness

 

CARE OF THE MOM

Continue as with Week One

 

Week Three (Days 15-21)

 

DEVELOPMENT OF THE PUPPIES

Day 19 -- Implantation of embryos in uterus

 

CHANGES IN THE MOM

See above

 

CARE OF THE MOM

See above

 

 

Week Four (Days 22-28)

 

DEVELOPMENT OF THE PUPPIES

Development of eyes and spinal cords

Faces take shape

Fetuses grow from 5-10 mm to 14-15 mm

Organogenesis begins-- Embryos are at their most susceptible to defects

Days 26 - 32 are the best days to palpitate (i.e.. feel for the puppies)

 

CHANGES IN THE MOM

Possible clear vaginal discharge

Mammary development begins

 

CARE OF THE MOM

After Day 26, palpitation may be possible to diagnose pregnancy

Limit strenuous activity (such as working, jumping, long runs)

Add 1/4 cup cottage cheese or a hard boiled egg to food on alternating days

 

 

Week Five (Days 29-35)

 

DEVELOPMENT OF THE PUPPIES

Development of toes, whisker buds, and claws

Fetuses look like dogs

Gender can be determined

Eyes (previously open) now close

Fetuses grow from 18 mm - 30 mm

Organogenesis ends -- embryos are fairly resistant to interference with development

 

CHANGES IN THE MOM

Swelling becomes noticeable

Loss of "tuck-up"

Weight will start to increase

 

CARE OF THE MOM

Slightly increase amount of food and switch to puppy kibble. If you feed one meal a day, add an extra meal. If you feed twice a day, slightly increase one of the meals.

Add daily multi-vitamin

Palpitation no longer possible due to fluids in uterus

 

Week Six (Days 36-42)

 

DEVELOPMENT OF THE MOM

Development of skin pigment

Fetuses should weigh around 6 grams and be 45 mm long

Fetal heartbeats can be heard with stethoscope

 

CHANGES IN THE MOM

Nipples darken and enlarge

Abdomen continues to enlarge

 

CARE OF THE MOM

Add cottage cheese or hard boiled egg to food daily

Increase the amount of food in the extra meal

Bitch should start sleeping in whelping box

 

Week Seven (Days 43-49)

 

DEVELOPMENT OF THE PUPPIES

Growth and development continues

 

CHANGES IN THE BITCH

Abdomen hair will start shedding

The bitch will start to look pregnant at this point

 

Week Eight (Days 50-57)

 

DEVELOPMENT OF THE PUPPIES

Fetal movement can be detected when bitch is at rest

Puppies can safely be born from now on

 

CHANGES IN THE MOM

Milk may be squeezed from nipples

The bitch will be very large.

 

WEEK NINE (Days 58-65)

 

DEVELOPMENT OF THE PUPPIES

Growth and Development continues

 

CHANGES IN THE MOM

Nesting behavior may be seen

Bitch may become distressed (panting, pacing, acting uncomfortable)

Temperature should be around 100.2-100.8 degrees Farenheit

When temperature drops to around 98-99.4 degrees Farenheit, puppies should be born within 24 hours

Appetite may disappear as whelping approaches

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