I would try to get $ refunded, then you could choose to get another dog later, or not.
If you are sure you want one, SOON, then I would opt for the other litter, not the sister. Hopefully the pups in June won't be so tiny.
I think the sister would never measure up in your eyes. You'd look at her and think, Macie didn't do that, or Macie did this. You'd be reminded too much of her. Also, she is very small.
Please do get SOMETHING in writing before your year is up. Verbal agreements never stand up and you don't want the breeder saying it's too late. Read your contract carefully and make sure it doesn't mention "refund" anywhere. Also, what about reimbursement for vet bills? |