Is my dog pregnant or not???

Question
Hi Joyce,
I was wondering how to tell if my rottwieler is pregnant? It has thought to been her 64th day today and still no pups. Her teats have grown a little and is sometimes moody but thats all. I have done quite some research and a lot of people said that they show signs right before giving birth, this is her first litter and mine. I cant afford to take her to the vet right now, so please write back ASAP it would help a lot!
Thanks so much! - Kacie

Answer
Hi Kacie

Keep in mind if you are doing the counting method, gestation is from when the dog's eggs get fertilized not necessarily from the date they were bred.

Do you have her in a whelping box?  Has she nested?  Is she digging? Has she gained size or weight?