Trying so hard nothing happening

Kayla • I`m 23 years old. I have had 6 open heart surgeries and I have a pacemaker. My fiancé and I are trying for our first.
My fiancé and I have been trying for 6 months. Every time no protection and no pulling out since we've decided we are trying for a baby. I'm getting a little unmotivated since I see all these other women/ friends getting pregnant and having their precious babies. Help I need someone to talk to