I think what my hubby, or at least the men says it's true. we need to learn to be happy for those who have conceived/giving birth in order to feel happy and positive about yourself.
To cut long story short, my bil/sil had some pre-arrangements about their overseas study stint and decided to bring my in-laws' to stay with them. My inlaw's visa did not work out and ended up with my in-laws' staying at my small little home with not enough rooms for them. With my mil's nosy/controlling/mouthy behaviour, that situation drove me to depression for the period they stayed with us for 2.5 years. During dat time, I just moved in to my new house, and started planning for #2. Hence that is why OB mentioned there was no way I could conceive successfully until I get stress out of the way. And when sil got pregnant with the first child during that time, I was so not happy at the whole situation coz I felt then that I couldn't get preggie partly because of them that they had caused this unfortunate housing arrangement with my in-laws which led me to my depression.
As stress is out of the way (at least for now by them staying away from me for the past 2 months), I began to feel healed from dperession and avoided contact with sil/bil (they were still overseas btw). But seeing the baby being delivered yesterday, I cannot deny I felt jealousy. However, I decided to move on and take more courage in looking at their photos, I truly feel happy for them. It wasn't easy, but I'm glad I did it. And I felt that it was a rehabilitation and therapy for me, to move on with me to conceive +vely. I did not plan this out anyway, it just happened... and I still have a long road to recovery...