I need advice..

Me and my boyfriend have been ttc now for a year. I have done everything. Like put my legs up, track my ovulation, has sex at the right times and I have been using Pre-Seed. Yet nothing.. I am 21 and he just turned 23. I feel like I am getting more and more depressed, because all I have ever wanted was to be a mother and to have a bond with a child that I didn’t have with my parents.. so any advice ladies would be appreciated