<human>: Can you provide a brief overview of the text?

So I am a bridesmaid in a wedding that is going to take place in June 2015. One of the other bridesmaids just found out she is expecting and will be about seven months along at the time of the wedding. (Hooray!) The dresses were ordered a while ago (mid-September) and the lady at the shop (House of Brides, for all you Chicago ladies!) said that she'd have to call the manufacturer directly to see if they could change the sizes this late. Now this is where I'm confused. The consultant said that she was going to have the expectant bridesmaid guess what size she was going to need at that time and they would prefer she order too large so they could alter it down to fit. Does this make sense? Just wondering if any of you ladies have been in a similar situation and what you did to alter the dress to fit? The bride is not on Reddit so I told her I'd ask around to see if you ladies have any suggestions! 

In case you're curious, [this] is the dress. Thanks in advance for your help!
<bot>: Bridesmaid wasn't pregnant when ordering dresses, but she just found out she is expecting, will be seven months along at the wedding and not sure how to handle the dress situation!