How to get pregnant?

Katherine
Anybody have any good tips on how to get pregnant? I got pregnant with my daughter when I was 19, wasn't trying at all. Then I got pregnant again in February on 2015 and had a miscarriage in may of 2015. Me and my fiance have been trying ever since. I know it's kind of it will happen when the time is right. But if anyone has any advice to boost my chances. They would be greatly appreciated.