My local council used to run a free post natal group for first time mums. It's been stopped now due to cuts. I attended with DD, a group of @ 10 local new mums babies ranged from 6-12 weeks at first meeting.
The course ran for 6 weeks & each week was a different topic : weaning, dental hygiene, local baby class rep, what's on where, bit of baby massage, feeding, sleeping etc. The session lasted about 90 mins, everyone weighed their baby & filled out their red book but most importantly, there was tea coffee biscuits & comfy chairs provided.
The class was run by the HV who was amazing. Any baby was upset, she'd take them for a wander round the room. Baby bouncers & mats provided so we could all relax.
Each week at the start we all had a chance to say how our week had been, discussing problems etc. A good forum for sharing knowledge & taking solace in common problems.
3 years on 8 of us keep in touch, we're currently organising our 3rds joint birthday play date.
My point - this was a free session, it was actually set up to try & catch PND in new mums, it was strongly recommended by the GP that you go but was actually much more than that. I would have paid for it, there is nothing like that in my area now, other than mums & toddlers groups.
It was of much more value than the ante natal classes.