
dogs can still have a litter even without a tie...my male was stud to a litter of 10 (his first time) and he never accheived a proper tie, but I did hold him in position for about 10 mins though on each time to make sure that there was the best chance.....at this stage you probably won't know if she is pregnant. You can get a scan done from 28 days onwards but these aren't always accurate. To be honest I never saw any signs with my bitch till she was 5 weeks + even then I wasn't convinced as she had previously had a very convincing phantom pregnancy and even went to the point of putting herself through labour

the earliest things are usually around 3 weeks they may suffer morning sickness, or go off food. Then with my bitch it was her chest expanding sideways and then the gradual disappearance of her waistline. No movement was felt until her last week (54 days) then she gave birth on day 62..... Good luck
forgot to add, if you haven't already got it, get yourself a book called the book of the bitch available from amazon etc it is a complete bible when you are breeding :-)