I didn't really venture out on my own much when DS was little - I took him with me to visit my friends, booby club, my horse. With my horse, it WAS a sacrifice I made - I couldn't ride for a while because DP refused to come with me. But at least I got to see my horse (I agist). Nowadays DS can actually have a ride and will play in the sand arena whilst I have a ride, too (I go when no-one else is there, so he won't get run over by other arena users).
I never really felt the itch to do something without DS. In fact, I was at pains to incorporate him into my things. There wasn't anything I was doing in the lead up to DS's birth that was exclusive of children, which I'm grateful for. I'd long given up clubbing and pubbing and getting blind drunk. I was pretty ready for him, even though I doubted myself just before the birth