Reddit mentions of Mothering Multiples: Breastfeeding and Caring for Twins or More! (La Leche League International Book)

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The best book for twins, imo, is this one because it is written by doctors. The important thing to do in the first trimester is to try to gain some weight following the guidelines they suggest. Also, they recommend seeing a specialist because twins are considered highrisk. I also found Mothering Multiples extremely helpful for information on breast feeding twins.

The doctor's statement makes me wonder if you are mono-di (different sacs, share a placenta). If they are di-di (different sacs and placentas) then they could be monozygotic or dizyogotic. If they are mono-di, then you should definitely see a specialist because you are at risk for things like twin-to-twin transfusion.

I also suggest looking for a local mother/parents of twins/multiples club. They often have consignment sales where you can get good twin stuff for not too much money. You don't need doubles of everything, and talking to different moms will give you an idea of what you do need to double.

I remember the day I found out. I kept randomly exclaiming, "Twins!" It was nice in that I got to make two announcements, since we waited to announce the twin part once we got past the danger zone for the vanishing twin syndrome.

I have exclusively breastfed my twins since day one, and it's been six months. They're growing well.

I will say that it's stupidly time consuming, especially in the beginning. If I were pumping, I couldn't do it: my body just doesn't respond to pumps (same issue with my singleton). Fortunately that's not an issue since I stay at home with them for now. You also will want to do everything you can to boost production and not skimp on calories. There is a useful reference book called Mothering Multiples which has some nice info on caring for twins, in addition to its useful info on breastfeeding. http://www.amazon.com/Mothering-Multiples-Breastfeeding-Caring-International/dp/0976896931/ref=sr_1_1?s=books&ie=UTF8&qid=1453763391&sr=1-1&keywords=mothering+multiples

Other recipes for success will be learning to tandem feed, if only for one of the feedings, and finding a nursing pillow you like (I use the blessed nest pillow, like a big beanbag http://www.amazon.com/Nesting-Pillow-Organic-Nursing-Washable/dp/B001TFNPWA/ref=sr_1_1?s=baby-products&ie=UTF8&qid=1453763636&sr=1-1&keywords=blessed+nest+organic+nesting+pillow).

Good luck. You can do it, if you want to. And if you can't, that's okay too.