Freshwater beginner help?

hi i used to have a saltwater tank but that ended in ich ( long story :P ) so now i got a 10 gallon freshwater tank 2 start out going back into a aquarium hobby. i plan on getting not to many fish only like 6 and one or two shrimp. the tank was setup yesterday and we used tetra safestart so today we added 2 dalmatian molly , 1 black molly and one white molly to start the cycle. so far they look great and have been swimming around nonstop but one of the dalmatian mollys is a boy and ones a girl so will they mate with other peaceful fish in there? and when can we start adding the other 2 and the shrimps if thats a good match up ? i watched a freshwater setup video and it said 2 weeks after it cycled you can start adding the fish. is that true and would a drawf gourami be okay to add? and last will the mollys i mentioned mate ( idk if ill raise the babys and if i do ill prob give them 2 the fish store ) so thanks for the help :)