Trying to conceive is the ultimate excuse for making love whenever and wherever you can! But remember that you're unlikely to fall pregnant the first time you try, the spontaneous conception rate (chance of becoming pregnant) for two healthy, fertile people, stands at around 15 - 20%, which means that if you make love without contraception during your fertile period, you have one chance in four to six of falling pregnant. These chances decrease with age, but one thing is certain - the more you make love, the more chance you stand of giving birth nine months later. You'll give yourself a much better chance by looking after yourself and getting enough sleep - exhaustion does not a sex beast make!