@Mor - Basically you want to be healthy if you want to get pregnant. Healthy and as stress-free as possible. Women should also bear in mind that it can take up to a year to become fertile again after stopping regular birth control medication, so don't panic if that happens.
I know it's difficult to remember when you are eager for something to happen but unless you've got a specific problem to deal with, you will increase the chances of getting pregnant by relaxing and not worrying too much about it.
I also want to point out that carrying a pregnancy is not the only way to increase a family. There are a lot of babies and children out there who need homes and will be just as precious to you as children who happen to share your genes.