In all honesty - I think you may be trying to do just a bit too much. It all sounds do-able now but in my opinion it may not be best for you or your baby.

I found 6 weeks post-natal I was still healing from the birth, settling feeding issues and extremely tired - and I had a partner at home and am on 12 months leave. Even then I found it difficult to give enough to my baby. Attachment and bonding is so important in those very early months and you never get that time again. I think job opportunities will always be there - especially in the current economic climate.