Rottweiler gestration

Question
I have a pregnant 4 year old rottie on day 65 of gestration.  She got hooked up with big rottie and then 10 days later she got hooked up with a runaway male... How do I tell if she took on the first hookup or the second?  She is really big but I don't feel much movement, she is milking if I touch her teets but not much sign regarding her going into labor.  I am wondering should I be concerned on this day (65)from the first hookup or should I wait 10 more days for the second hookup. This is her first litter and I really can't lose her!

Answer
Hi Nita. My best advice to you would be take your girl in to the vet for a check up. It can be dangerous to let a dog go too far over her due date. I'd also suggest x-rays. This will tell you about how many there are, if there are any really big ones in there, and if they're close to being born. If everything looks good, and mom is doing well, then the vet will most likely tell you to give her a few more days. As for being able to determin who's the father, well, you may have to do DNA testing on mom, dad, and the pups if these pups are to be registered. This is the best advice I can give you for now. Good luck, and if I can help with anything else, let me know.