I felt like that after my last three m/c. We always wanted two kids but after 3 m/c and staring down the barrell of IVF I felt that maybe we should settle for one. However, the urge to have another child was too overwhelming. I can't say for sure that if falling & staying pg was easier for us whether I wouldn't have had that longing feeling or not??.... I know if things were easier I'd contemplate a third.... but like you, the thought of m/c and possibly going down the IVF path to have another scares me too much plus emotionally I am nearly broken :-(