Just wanted to say welcome. I've seen you on the DID board. I'm due on December 30th with my third. My first two are 12 months apart and my last two will be about 16-17 months apart.
BTW, you will be fine. It's a little rough in the beginning but it doesn't take long to get used to the changes. You will love having them close together although it might take you a month or so to believe that

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If you have any questions, feel free to ask. I'm sure the other BTDT moms would love to help.