Suggest Remedy For Problems In Conceiving

My boyfriend and I are trying to have a baby, but nothing is working out for me trying to get pregnant. We are having sex on my fertile days and even on my ovulation day which is today. I'm not even having any symptoms. What do u think the problem is? Do you think I'm am trying to hard to have a baby and why is it so hard to have a baby? How come other women get pregnant so quickly and I can't! Do you have to be healthy? Would u please email me at YYYY@YYYY