How do you make your pets on pets 5 have puppies?

all you have got to do is keep them together till there adults and the trick for that is to close the program and go to the clock at the bottam of screen and then go foward two hours then whate till love hart coms up then when it dose change date this time about 4 days later untill your iun nursary then go to livin room and then click on pregnant dog an you shud have some pupps