http://www.sciencedirect.com/science...4067369290018XCumulative pregnancy rates during lactational amenorrhoea were 2·9 and 5·9 per 100 women at 6 and 12 months, compared with 0·7 at 6 months for the LAM. The probability of pregnancy during lactational amenorrhoea calculated from these studies is similar to that of other modern contraceptive methods, and it seems reasonable for a woman to rely on lactational amenorrhoea without regard to whether she is fully or partly breastfeeding. So that amenorrhoea and fertility suppression can be maintained, counselling about good breastfeeding and weaning practices remains important.
http://www.sciencedirect.com/science...4067369291538JThe effect of breastfeeding on fertility is well known; however, its use as a method of family planning was, until recently, untested. In 1988, the Bellagio Consensus Conference proposed guidelines that became the basis for a method of family planning called the lactational amenorrhoea method (LAM). The principle of LAM is that a woman who continues to fully or nearly fully breastfeed her infant and who remains amenorrhoeic during the first 6 months postpartum is protected from pregnancy during that time. We have assessed this method in the context of a breastfeeding support intervention study of 422 middle-class women in urban Santiago, Chile. The cumulative 6-month life-table pregnancy rate was 0·45% among women who relied on LAM as their only family planning method (1 woman pregnant in month 6). The findings indicate that LAM, with its high acceptance and efficacy, is a viable method of family planning and can safely serve as an introductory method for breastfeeding women.
http://www.springerlink.com/content/lk18445632m6q430/"breastfeeding does provide a period of infertility"
"LAM is recommended for up to six months postpartum for women who are fully or nearly fully breastfeeding and amenorrheic, and relies on the maintenance of appropriate brastfeeding practices to prolong lactational infertility, with the concomitant delay in menses return. A recent clinical trial confirmed the theoretical 98% or higher effectiveness of the method and field trials are demonstrating its acceptability."
Lactational amenorrhoea for family planning: http://onlinelibrary.wiley.com/doi/1...9/pdf/standard
http://www.lalecheleague.org/ba/aug93.html"LAM proved highly efficacious, with a pregnancy rate of less than 1/2 of 1 percent by six-month life table. The intervention more than doubled the percent of women who achieved six months of meeting LAM criteria. At six months postpartum, family planning coverage had increased from 78 percent to 91 percent with the inclusion of LAM in the "cafeteria" of methods available. Pregnancy rates remained lower for the intervention group for over a year, and the percent who were breastfeeding remained higher long after the intervention was over. The duration of amenorrhea was also extended. Where the control group performed similarly to other published studies on the duration of amenorrhea during full breastfeeding among similar women, 7 the intervention group had longer durations of amenorrhea, even when comparing the full breastfeeders in each group. Clearly, optimizing breastfeeding practices, even among full breastfeeders, extends the duration of amenorrhea and the impact of breastfeeding on fertility, even after LAM use has ceased."
But this is all moot anyway, as the OP does not meet the criteria for LAM - which are that
1) the baby is less than 6 months
2) Menstrual periods have not returned and
3) the baby is fed on demand and nothing but breastmilk is given to the baby, or only token amounts of food, including overnight.
Given the OP's period has returned (which I didn't realise until later on in the thread), the LAM wouldn't work.
And yes, I suppose you could chart to check for ovulation, but that gets tiresome when TTCing, letalone doing it after you've had the baby!
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