Yay Kelly! I love it too.
I started going again when DD was 8wks.
I go once during the week and DS2 calls it his 'different creche', he enjoys it as he knows it's only 1.5hrs and DD just charms pants off the other carer's.
I then go on a Sunday morning to a Body Attack class.
It's such a routine for me that I feel guilty if I don't go