I am on 30 points a day. I weight about 76 kgs and am about 168cm tall and am moderately active (eg have a bub to run after). I think it takes these things into account. And it also says the maximum you should lose while breastfeeding is 0.5kg a day (after the first couple of weeks.). Not sure how long after birth to start though. I have only just started at 7 months. Maybe leave it a while? I am sure you have enough of your plate and may very well find that just eating normally will reduce your weight. Especially during these early days.
HTH.