Problem is according to my doctor, is that we constantly think about it and a woman secretes something which kills the sperm.
Apparently this was to prevent pregnancy in the olden days when the living conditions wasn't good.
Teenagers and drunks stress levels are low because they don't care about the consequences of their actions which favors their chances.
Yes just dont stress about it. One of my friends at work tried for about 2 years with no success. Then he got 2 dogs after moving into a house with a garden, and the stress relief that the dogs provided "helped" his wife get preggers within 2 months. Stress has an enormous part to play in it. One good thing you can do is ask the doctors advice on what dates and times would be best for you 2 to concieve based on her natural cycle. Then send her for a nice destresser day at the salon. And have 2 straight days of mad drunken monkey sex. If you are focussed more on the act of having fun and less on the act of falling pregnant, then it will happen if both of you are fertile.
Stress is a natural contraceptive, not specifically attributed to the "Olden days". It is merely to prevent adding a more dependant stress into your already stressed life. No animal can successfully have babies under great stress. Many animals can actually have a natural abortion if times are hard. The body will always naturally prevent the birth of a dependant child, if it is getting chemical signals telling it that there are external stressors in the world. The body does not know what the stress is, just that it is large enough to cause enough of a chemical response to prevent conception.
Get her to chill out. Its the first step to getting her pregnant. Let her know that the stress could be preventing her from falling pregnant. Do some google searches on do's and don't's of falling pregnant and print them off for her. So that it doesn't feel like a personal attack from you. Women trying to fall pregnant can get very defensive if they are told that they might be the reason they are not. So try to detach yourself from the advice, either a doctor, or a website is the best way. Once she realizes it and is open to the idea, figure out between the 2 of you how you will lower the stress in your lives while still trying to concieve.
And that advice about god decides, please ignore it. Without letting this thread devolve into a creationist debate, frequent sex is the best way to ensure that you get her pregnant. A friend in Scotland got pregnant because her and her hubby had sex 2-3 times a day for a month. Basically increasing their chances of catching that ideal moment in her cycle. Was obviously awesome for him. Luckily its my wife's friend, so she has now adopted this strategy as our conception strategy for when we start trying... BONUS!
Anyway. Just get her stress levels down. Then shag like rabbits as many times a day as you can manage. Spread out over the day of course. Not 3 times in 1 session, its a bit redundant, but fun. Easiest schedule morning and night during the week. Then up it to 3-4 times on the weekends. Think about how Lions do it, they pair up for a week or 2 and shag every 20 mins.