DH and I are expecting our first baby in September. My SIL rang DH tonight to tell him she has just found she is 5 months pregnant and didn't realise. The child is due less than a week after ours. I'm so angry and upset. SIL is her parents' favourite and she and her other child are treated like golden balls. My heart breaks for my husband. This will be his first baby and yet his mum and dad's attention will now be squarely on the other one, and our child will be constantly overshadowed for its whole life. Call me selfish, but just once - just this once - I was looking forward to the attention being on us, when it's always on golden balls. I am meant to see his family tomorrow but I'm so upset I may cancel. Is there anyone else who understands my hurt, or AIBU?