The Basics

Articles on basic care and considerations for new or prospective owners.

Vet/Health Care

Articles pertaining to health, nutrition, and veterinary care.

Breeding and Development

Articles and pictures about hedgehog breeding, growth, and development.

Advanced Care Issues

Articles for people who already own a hedgehog or want to know more than just the basics.

Shows and Colors

Learn more about hedgehog shows and hedgehog colors!

Purchase a Hedgehog

Wondering where to buy a hedgehog? Start here!


Where to purchase hedgehog supplies and collectibles.

Our Herd

Meet the hedgehogs of Hedgehog Valley!

Other Critters

Meet the other critters that call or have called Hedgehog Valley their home!

Hedgehog Weight Gain During Pregnancy

We tracked the weights of a group of female hedgehogs during pregnancy to see if we could use weight to reliably tell us if a hedgehog is pregnant. We weighed the mother hedgehogs on the first date that we put them with the males, then once a week afterward. Out of the group of females, there were 11 who birthed between 35 and 37 days. These 11 were included in our data. The starting weights of the females ranged from 264 to 492 grams. 

Table 1 shows the high, low, and average weights at each weekly weigh in. Weight difference from start to finish ranged from a low of 54 grams to a whopping high of 266 grams. The average weight gain was 128 grams. 

Table 1. Actual Weights

High Low Average
start 492 264 362
week 1 510 288 362
week 2 554 306 389
week 3 564 312 413
week 4 610 316 446
week 5 620 324 477

Table 2 shows how the weight was distributed across the 5 week time span, based on the average weekly weights.

Table 2. Distribution of weight gain across week, based on sample mean.

week 1 13 grams
week 2 27 grams
week 3 24 grams
week 4 33 grams
week 5 31 grams

During the first week, weight gain was 13 grams. The typical pattern was that about 10% of the weight gain occurred during week 1, 20% during week 2, 20% during week 3, 25% during week 4, and the remaining 25% during week 5. There was considerable variation in the amount of weight gain, but the general pattern of weight gain increasing as the pregnancy increased held true for most of the mothers.

Antigone Means

Iola, KS

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This page last updated by Tig on  11/12/18