Can I just suggest not making your mind up until your baby is born?
The only reason I say that is that I had a fear of natural birth and breastfeeding that stems I think from me being raped.
As it turned out by about 8 months I'd completely turned around and wanted a natural birth. As it turned out I had to have a section at 8 months but I still thought I'd have a problem with breastfeeding and was in denial (so knew nothing about how it works, although plenty about why it is so good).
The minute she was out I was breastfeeding but it didn't click for a few days. But I was so glad I did it. I found it astonishingly hard mentally because I was unprepared and she was so little and jaundiced but 11 months on we're still exclusively feeding.
And it's not for the health benefits primarily that I'm so glad I fed her myself -- it's the relationship (I won't use that horrid word 'bonding') element to it. The fact that I can feed her to sleep, comfort her, give her a quick drink, reconnect if I've been apart for a couple of hours.
If I hadn't just swallowed my reluctance (I was always going to b/feed but just felt I didn't want to much) and got on with it, I'd have missed this. It's the best, most unselfish thing I've ever done for another person.
Can you talk to someone about it? I'd hate for you to not give it a go and then really regret it.
But just because you feed her a second class substance, doesn't make you a second class mother. All the very best to you. xx