I'm soon to be a single parent for the second time.
First time (8 years ago), he wanted an abortion, I didn't get one, so I was a single parent from birth. I bonded really well with baby, was quite anxious though and she was a baby that didn't like to be put down, so was literally attached to me 24/7. I breastfed for 18 months and co-slept, and didn't sleep for 2 years. Her diet was a bit ott, all organic etc etc.
I'm now nearly 5 months pregnant and I've ended things with partner. He wants to be involved so I will have some support, but I will be a single parent from birth again. I put too much extra pressure and stress on myself the first time round which I feel could be avoided this time by not breastfeeding, making sure baby sleeps in his/her own cot, and making sure I take care of myself and my DD properly which I feel would involve leaving baby to cry for a bit occasionally. This would be going against my instincts though from what I remember with my DD. I just want make things as easy as possible as I really struggled first time in the initial years.