I also think that since things are new, it might be a more overwhelming time and that routine still needs to be established so things might settle to the point where you don't feel the need to go out as much to escape as often. Maybe it won't change, that's your choice. If you can balance it all and if it makes you a better mom because it makes you happier, and in turn makes it easier for you to look after LO then hey, go for it. Just be careful not to overdo it so you don't tire yourself more.
The first six weeks are VERY hard and *whispers* very boring... I hated them. If I could have given my LO to someone else at times I would. Now though, we have our evenings back as he goes to bed and I don't feel so trapped. In fact, I don't feel the need to have LO babysat too often (we have plenty of willing babysitters) as OH and I get time to ourselves each evening. On Friday we had friends round and LO was fussed over until we put him to bed. Once asleep (8pm) we sat in the garden, drinking beer and eating pizza. The only difference from my previous life was that we kicked everyone out at 11pm instead of the small hours... This suits me better anyways as I like my sleep and I hate hangovers!
Anyway, my point is, your life doesn't have to change *completely*, although it certainly feels like it might have at the beginning.. You can get it back!