E.:
I have stayed home with my children (now 9 1/2 and 6 1/2) for almost ten years now, and, although sometimes challenging, I have zero regrets for doing so! I was able to see and be there for every milestone and to better help form/shape my two little ones the way I want them to grow up, and they have done so quite nicely.
Okay, I have had to cut corners and live on little means, but you can find creative ways that are still enjoyable to all.
As far as adult conversation...I soooo get that one! Do everything you can to meet good women (family church groups, YMCA, parks, etc.). The challenge is to find good women with children that you like and, as a bonus, a husband you and your husband like as well! LOL I started a once-a-month girls game night too, which was so wonderful! One night a month (there was twelve of us), someone would hold it at their house and we would play games, have dinner and drinks, and have REAL girl conversation (and the dad's get to plan something fun to do with the kids while we were at our girl's night). We all really bonded and it was fun to throw on a sundress, do our hair, drink martinis, and have that much-needed adult conversation and fun! This progressed into family get togethers too (with kids and husbands). Look around, ask some friends, and ask them to ask women they know, etc. and shape one up.
In the meantime. I always try to think about when I am an old woman....what will I be proud of and what will I regret. For me, I know I will be proud that I was there for my kids during their early years.
Good luck to you whatever path you choose!
D. C.