I have been a Neo-politan Mastiff owner since 1999. I have been extremely lucky to have lived through 8 pregnancies. Talk about stress! My current Female is Bailey, beautiful mahogany and about 160#. This is her 2nd batch and she is a very good mother. I suppose it has been at least 5-7 weeks, it is so hard to figure out exactly to the day when she got pg., Last batch wasnt so bad, at 4:ooam she was standing at the foot of my bed with a pup hanging out of her mouth squeeling for me to get up. I threw on some shorts and got her to her bed, which is a 6 foot diameter childs swimming pool in the front room.I cut the embilical cord as another pup came squirting out, Thank God my 28 yr old daughter Christine and her 2 boys and boyfriend were staying with me! I yelled for her to get up and another pup came out. Thats 3. My 6th sense kicked in and I told Christine to go outside and check around to see if there might be a pup somewhere. I heard a yell and crash as Christine spotted a pup in the dirt under the deck, she twisted her ankle almost breaking it! OMG. 4 pups, 1 frazzled dad (me), 1 injured nurse, Olaf the 200# father, my bird Mr. Buttons, more later!