The genotype of the mother and the fetus influences the efficacy of a teratogen. For example, genotype determines the prevalence of cleft palate in inbred strains of mice whose mothers are administered cortisol during pregnancy.
Most women will not start ovulating in the first six weeks after giving birth.1 Breastfeeding typically delays the onset of ovulation.2 Depending on the intensity of breastfeeding, it can be several months or over a year before you regain your fertility.
In order to lose weight more easily during breastfeeding, a woman should refuse snacks. You can drink a glass of pure water or a cup of tea without sugar. The total calorie content of the daily diet should be about 1500-2000 calories. You must not eat less than 1200 kcal per day.