A bit of background.
About a month ago, h2b's family came over to visit our new house, h2b's mum told me that his sister and husband were trying for another baby, but that I shouldn't mention it to h2b as they didn't want anyone to know...of course, I told h2b, we don't have secrets.
A couple of weeks ago they came around again, h2b's mum pulled me aside again and told me that his sister had gotten a letter from the doctor for her 12 week scan in mid October...which leaves the the due date more or less on our wedding day. Once again, she told me not to tell h2b as apparently his brother in law didn't want anyone to know until the scan...yes, again, I told him.
Speaking to h2b about one of his friends today, who has set his wedding date as the day after ours, which annoyed him. I to be honest am not fussed as we only have one overlapping friend with this guy and he would have been invited to the evening, so I didn't think it'd affect us. I told h2b as much and that I was more annoyed at his sister than the friend (though to be honest I'm not really annoyed). H2b came back saying that his mum had finally told him about the pregnancy and that apparently it was just unfortunate, they had been trying for a baby before we announced our date, stopped when they found out, but it was too late by then.
Ok...so, we told people our date back around the beginning of May...with h2b's sister being 3 months in mid Oct, that means conception was around mid July ?
The whole thing's just a bit weird to me, and needed to get it out a bit! What would you think about this situation? (edit - by the situation, I mean h2b's mum, not the baby bit, I'm excited about that for them!)
I was going to ask h2b's sister to be a bridesmaid, probably still will. (edit - should I wait until she's had her scan to ask, at which point they'll most likely have announced the baby and might feel more comfortable about saying yes/no?)