I have a dd who is now 4 but have been trying for a second child for 2 1/2 years - have had IUI ad IVF and recently some investigations that show fertility is mighty low. TTC has occupied life for so long now - monthly cycle of trying, hoping and disappointment is wearing me down and my relationship with dp has taken some battering. I'm feeling like I need to accept family size and move on but still feel desperately sad I won't have another baby and guilty dd won't have a sibling. Has anyone had similar experience? How do you cope with it?