Ella-6
Congratulations on your baby!
I think baby groups/classes, etc can be useful. I joined a baby class at the hospital where everyone sat around nursing and asking questions about babies and stuff. Since it was all baby info it didn't feel like mindless chit-chat. The info was good (ironically, the hospital classes suggested co-sleeping and AP practices) and it got me out of the house.
There were a few play groups that formed out of it, but no one had to be involved. I am not in touch with any of them now unless I run into them in town - which is rare - though we used to some babysitting trades for awhile.
I think it depends on what kind of support you have where you are and what you feel like you need. I am in an area far away from all family so I do feel like I need some support. I never did try LLL though I did do CLW with DD.
If you think you might like to try a group, why not try it out? If not, then I wouldn't worry about it.
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OT: It's almost 3 a.m. and I am really tired because I just got back from the emergency vet with my dog who is very sick.

I'll be taking her to her regular vet in a few hours to try to figure out what is going on with her and she will need some fluids.
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