What, you mean you don't like having to do things four or five times to get the shots you need? Isn't that half the fun?

Like Lea said, Sim Blender can pause pregnancies. So can InSimenator, if you use the Reproductive Adjuster (which can speed them up, too). I believe they both also have options to change the outfits of everyone on the lot--InSim definitely does, and that's what I use to force the guests into formal wear at the weddings. Otherwise, it's outerwear and swim trunks, if I'm lucky. If I'm not lucky, I've invited Naked Victor.