I told my mom last night! She was shocked I'm so far along, but when I explained that first she was gone for two weeks and then it was right before SIL's wedding, she understood. We started talking about dates, and I said we couldn't go skiing this year (annual family vacation), and she probably wouldn't either, she said "well, it's a bit early to be planning like that." I don't fault her for it, as she had 5- and 8-week miscarriages, but I told her we're just going to talk and plan like this one is sticking. She said okay. For the rest of the night she hugged me and told me congratulations each time we were standing up. It was cute. My dad told DH congrats. At some point he said "this is getting really syrupy" when we talked about my aunts' grandbaby biological clocks. It was funny. My dad shows his love in actions, not so much in words, so this was fine.
All in all, that went well. I'm happy that's over. Now on to telling MIL and FIL next weekend, and we'll be done with the major announcements. This morning I woke up and it felt more real.