The normal gestation of a pregnant bitch is 63 days. If she got pregnant in July she should be at about term and should of seen a vet long before now. My Dixie gained 20 pounds with 10 puppies each weighing about 1 pound but she is a Golden Retriever. So my answer would be (but I'm not a small dog expert) no it is not normal?

Start taking her anal temp daily twice a day. A dogs normal temp is around 101.5. In a pregnant bitch around 100 to 100.5 about a week before delivery is normal. 12- 24 hours before whelp the temp will drop below 99 (sometimes as low as 97) which indicates impending delivery. The bitch will then start to pant very heavy and will start pacing and look for a Den type environment to whelp the pups. Do not let her outside without going with her and having her on the leash since they tend to wonder off to look for the Den. Make sure your vet is aware of what is going on incase there are problems. Just in case she starts to whelp in the middle of the night, have an emergency vet hospital number handy. The fact that she has gained 17 pounds could mean there will be problems.

Again these are suggestions but you really should contact your vet.

Plan on getting both your female's spayed to prevent this from happening again! Only planned responsible breedings should be happening!!!!!