I gave up nursing after two weeks and now I wish I hadn't, is it possible to breastfeed again?

If your baby is under three months old, you have very good chances of reestablishing your milk supply and teaching him to breastfeed. Even if he is under six months, there's still the possibility that he can start breastfeeding. Simply put your baby to the breast as often as you can and for as long as he wants. You'll need the latch and position to be just right, and the help of a breastfeeding specialist would be very valuable. Try to breastfeed when your baby is not very hungry. If he is hungry, feed him a little from the bottle and then breastfeed. Be patient, your baby needs time to learn how to nurse and your body needs time to produce more milk. You should continue supplementing with formula or pumped milk as you build up your milk production. You can review my post on how to breastfeed for tips on proper latch and positioning.