Dear Cindy, The nightime feedings have more of an effect on supressing lactation. I do admit I had a friend, tho, who just did not ovulate at all when breastfeeding, and sadly weaned at 6 mos to get pregnant each time(4 kids) An alternative might be to try to nurse other times than during the night(hard if sleeping depends on nursing to sleep) or doing a charting in regards to fertility awareness to see if she is getting signs of ovulation. I am 41, not nursing but ovulate still most every cycle. If you want more info on fertility awareness, let me know. Georgeanne Mattise, LLLL, MT, NFP instructor, mostly MOM [log in to unmask]