I loved starting using CSP after I had Louis! Such a revelation not to be tied to the supermarket every month!! I have used it constantly since then, so 8.5 years now, sometimes full time sometimes part time (I find it a bit tricky at work and the current house I'm in doesn't have an ensuite nor a basin in the toilet).
You are so lucky not having your AF back yet though - I had mine back between 5.5 and 6 weeks after birth