I breastfeed for the first six weeks, other than sore nipples a few day after the birth I had no problems at all. But when my son was 6-7 weeks old I started drying up - I literally ran out of milk and had to put him on formula. It doesn't really worry me now but i'm getting pretty pissed with the whole 'breast is best" thing!!!
Breastfeeding is great its much less effort than bottles but not everyone can and no one should feel guilty about that. Formula has everything a baby needs in it.
I plan to breastfeed (crossing my fingers I will be able to) for several reasons... Not the least of them being that I hear it's better for the baby and I don't see the point in buying formula when I can supply my own stuff! Lol.
That said, I know there are several reasons beyond mommy's control that can sometimes prevent breastfeeding. One mom on the pregnancy forum had to stop because of her little girl's jaundice.
Personally, I think every mom should at least give it a shot. Sometimes it works, sometimes it doesn't, but your baby can be very healthy either way.
Until I became pregnant myself I thought everyone breastfed their infants. As a child watching television I saw all mammals feed their babies this way, so I thought this was the most natural way of feeding. I also considered the cost of formula and time spend cleaning bottles and nipples vs. Learning how to breastfeed. Fortunately, I am able to be at home the first year so I have had lots of time to get the hang of it. Women who choose to or have to return to work within three months may have more of a difficult decision to make because as soon as they get the hang of breastfeeding they have to pump milk or formula feed when they return to work. I don't know how these women do it; my hat's off to them