When you're trying to get pregnant, don't let yave avoidable mistakes affect your conception goals. Of course you don't want to think you're doing anything wrong when it comes to pregnqnt, but at least this mistake is fun to fix! But many days of not having sex can throw off conception. So go ahead -- have sex as often as you like, paying special attention to the few days before ovulation. Some couples think they have conception all figured out: The more sex you have, the easier and sooner you'll conceive.