This is my first, so I can't comment on whether a gap between pregnancies has had any effect on nursing ability, but I have heard women say it's easier to lactate once they already have, though I don't know if that changes after a longer period of not doing so. I don't think it's a very age-related issue, though-- I'm already starting to lactate a bit even though I still have more than two months till my due date (though now it's possible I could have a c-section a week or two before my due date because of the baby's advanced size). Anyway, I expect I'll be fully ready to nurse whether the baby is here at 38 or 40 weeks, but if your question was about a longer gap between period of nursing, I can't speak to that, but most hospitals have lactation consultants now to help with such issues.
Lurking here....I'm 42. I have a 21 year old DS who I bf'd for 2 + years. I also now have an 18 month old DD who has been and continues to be bf'd, with no issues. I have an almost 20 year age gap between my 2 kiddos :) I actually did have to supplement my DS with formula, and not one ounce with DD, so I
I don't think you should look for trouble that isn't here yet.
Carol, mom to 6
Carol, mom to 7
I had a six year gap between babies, and I worried too. Didn't need to.
If you feel worried, take a box of mothers' milk tea with you to the hospital and start drinking it after delivery. 4 cups a day is the recommended dosage, and it will help your milk supply.
There's a 70!!! year old IVF mom in India breastfeeding her son, so since she'd done menopause already, I think we have no excuses. LOL.
Andy, Gerard, Sarah, Merina and Emma call me Mama,
but you can call me
Laugh a little - www.kellikolz.blogspot.com