My pom has a litter of 3, however one is alot bigger than the others. Is this normal?

Puppies can be as much as 8 days different in age, at the time they are whelped.. the largest ones are either in the prime position to get more nutrients, or gestationally older..Same with the 'runts'..they are usually just younger puppies..the male sperm can live as long as 8 days in the uterus, and the egg can be fertilized for several days..so some are fertilized earlier in the 'heat' season than others..Often the first born is largest, as they are positioned at the prime spot for extra nutrition..

If the others get pushed away from the best nipples, you can give the largest one supplemental feedings,, 2 or 3 feeding a day, by bottle, and that leaves more of mom's milk for the smaller ones..I do this to produce more even litters if some of them are getting left out...

There is always one pup that is bigger than the others. The smallest is the runt and the big one is the little pig. The middle size one is normal. It is perfectly normal. Just watch the littlest one to be sure that it is getting enough to eat.

It's normal

yes it is normal ,and normal to also have a runt in the litter .

Call the breeder mentor who is guiding you through this. They'll be able to address your fears and concerns.

Yes, it's normal.

Make sure he doesn't bully the smaller ones as they get bigger.