Advice

My husband and I are TTC and so far no luck but who knows til 6/15. But we have discussed how it seems everyone's getting pregnant without even planning it etc and for us who are trying seem to be taking longer. Just last weekend my brothers gf announced she's pregnant! Who knows if she was trying but now I can't get it off my mind how she's pregnant and I'm not. I need help to stop thinking about it. I'm super happy for them like no other and things happen for a reason. Just wish I had the good news.. You know?? I know stress doesn't help TTC either..