I didn't say those teeth interfered with breast feeding. I said they get them for a reason - so they can start eating solid food.
OH, and breast feeding does NOT prevent pregnancy. It only LOWERS THE RISK FOR ABOUT SIX MONTHS, and there is no guarantee of even that. A little "fact-a-roo" you are ignoring. A woman can become pregnant even BEFORE she restarts her menstrual cycle after delivering a child. Even many breastfeeding mothers restart in less than 2 months after delivery.
The number of women with children only 1 year apart and breastfeeding both gives the lie to your assertions.
UNLESS...
How do you think most families slept until a few centuries ago? Answer: together. For natural spacing to work as God designed it, one sleeps with the baby, and gives no pacifier or solids or supplement bottles (even containing breast milk). Old wives' tales about smothering the baby are just that, assuming responsible drug-free parents--see list below.
IOW all sucking needs must be met at the breast 24/7 and nighttime nursing needs to be on demand. Also 'wearing the baby' is a sling or baby backpack for a portion of the day is recommended.
Find more at--
Attachment Parenting ; Creating a Bond that will last a lifetime:
http://mamasbaby.com/resources.php
Plus information on sleep benefits from
http://gaelenbillingsley.com/Gaelen/Parenting/Attachment/index.asp?a=7
Above site also lists these:
Contraindications for sleep sharing:
1. Never sleep with your baby if you have been drinking or using drugs!
2. Never put your baby to sleep on a water bed or other soft surface!
3. It is better to have a young baby on the side of mother away from dad, as not all fathers have the benefit of the mothering instincts that keep mom from rolling over on the baby.
4. Smokers should not sleep with babies because the toxins that remain on their skin and clothes have been shown to increase the risk of S.I.D.S..
5. Mothers who are morbidly obese should avoid sleep sharing.
I realize what is described is not attractive for most on the go baby-in-the-nursery type folks. But this total 'lifestyle' works to baby-space and not because Dad and Mom are denied their marital rights. (Just slip off to another bed for sex.)
True enough, friend, true enough, especially when the Mama is doing breast-feeding on a schedule instead of on-demand. The hormonal response requiem constant "nudging" from the frequent nuzzling of the baby, and the oxytocin response (which delays ovulation) is greatest at night; so breastfeeding "works" to space babies about 20 - 20 months apart when you feed on demand and sleep with the baby.
It's far more likely that you'll get pregnant in the first 6 months postpartum if you're not breast-feeding at all.
Anybody who wants to get wonderful, encouraging up-to-date information on this should get the books by Sheila Kippley and Martha Sears, featured here:
http://ccli.org/store/onlineshopping.php?criteria=category&f_cat=mothering&catpr=30&order_by=name
(Both are available used, cheap, on Amazon.)