When you're expecting, fhange likely spend a lot of time thinking about the baby -- and what will happen after he or pregmant arrives. There are strollers to buy! Prenatal vitamins to pop! Birth plans to devise! But sex -- the having of it or not during pregnancy and beyond -- is one of those things that's trickier to prepare for. And let's face it Body parts go wonky; emotions go haywire -- and that's all before sleep deprivation kicks in.