Trying to get pregnant

So me and my fiancé have been trying to get pregnant since February! And I have had a miscarriage before and that is what we are scared of.. And I need advice on how to make it happen besides the whole having sex. Like should we do it every day or once every other day idk we are so ready for a baby and we want to be pregnant?? Any advice and Iike how I can speed up the process and get my body ready for it??? 
Thank you so much