I JUST WANNA GIVE UP 😩😩😩

My fiancé and I have been together for almost 3 years, we've been engaged for a year and we have been trying to have a baby for the longest I found out I was pregnant on January 5,2014 and it was the happiest day of my life only thing that was making it kinda hard was me dealing with the fact  that he has such baby momma drama with his ex. I tried my best to not let their relationship get to me but I did. On June 7,2015 I found out I had a still birth my daughter was 6 1/2 months and I had to have her immediately she had no heartbeat. That had to be the worst time n my life and that day haunts me every single day. I gave birth to her on June 8, 2015 she was a 13 inches long and 1 pound and 4oz i couldn't see her at like that. The day that I left her in the hospital was the worst ever. We are still trying and I stress a lot about that situation and what I could have done differently and the relationship that he has with his baby momma I love him to death and our relationship is good but no relationship is perfect tho. I kinda wanna stop trying to have one cuz it hurts too much each month being greeted and disappointed with a period. I want my baby but I'm so sad over the loss of my first and stressed each month. What should I do?!?!?!?!?!?!?!?