Chances of getting pregnant while breastfeeding If used perfectly, breastfeeding as a birth control can be as much as 98% effective. This means you are only giving your baby breast milk, and only for the first six months. After this time the chances of becoming pregnant will increase.
About 2 out of 100 people who use breastfeeding as birth control get pregnant in the 6 months it can be used after a baby is born. Breastfeeding won't prevent pregnancy if you feed your baby anything other than breast milk.
Breastfeeding has a demonstrable influence in inhibiting ovulation; it is not surprising that it has an inhibiting effect on fertility. According to Perez, during the first 3 months when a woman is nursing, there is higher security provided agaist conception than most contraceptives.
The simple answer is that you can get pregnant while nursing. However, many moms experience a time of delayed fertility during breastfeeding. This is very common and is referred to in many places as the Lactation Amenorrhea Method (LAM) of contraception.
When a mother is breastfeeding exclusively, or even on a consistent basis, it is less likely that she is going to ovulate at all until she starts to wean. That doesn't mean that you won't ovulate or conceive.
Pay attention to your discharge. If suddenly the cervical mucus goes from sticky and thick to being rather light and clear to the point of making you feel wet, you are ovulating, and pregnancy after ovulation is more than possible.
Can you get pregnant while nursing? The short answer is yes, you can. But isn't breastfeeding a form of birth control? Well, it's true that breastfeeding can keep you from ovulating -- but only if you nurse your baby exclusively (no formula) and follow a few other rules carefully.
Previous twinning studies
Steinman found that women who become pregnant while breastfeeding are nine times more likely to conceive twins than women who are not breastfeeding at the time of conception.
Prolactin (the milk-making hormone) levels are usually higher at night. Prolactin can suppress (stop) ovulation.
This is why fraternal twins run in families. However, only women ovulate. So, the mother's genes control this and the fathers don't. This is why having a background of twins in the family matters only if it is on the mother's side.
Many believe that breastfeeding during pregnancy is harmful to the unborn baby. However, research shows that it's safe to breastfeed if your pregnancy is uncomplicated. Breastfeeding won't affect you, your unborn baby, or your older child.
Once implantation is successful, breastfeeding should not affect a healthy pregnancy (see A New Look at the Safety of Breastfeeding During Pregnancy for more information). If your periods have come back and settled into a regular pattern, it is likely that breastfeeding is no longer affecting your fertility.
Most women did not begin ovulating until at least 6 weeks after childbirth, but a few ovulated sooner. Usually, women who are not breastfeeding ovulate sooner after giving birth than women who do breastfeed. However, a woman's first ovulation cycle might occur before she gets her first postpartum period.
If you are still transitioning to full fertility (as discussed above), breastfeeding may affect the success of implantation. Once implantation is successful, breastfeeding should not affect a healthy pregnancy (see A New Look at the Safety of Breastfeeding During Pregnancy for more information).
With “dry” breastfeeding your baby does not actually drink significant amounts of milk, but he is able to smell and taste the droplets of milk that remain in your breast after pumping.
Factors that increase the chance of twins include: consuming high amounts of dairy foods, being over the age of 30, and conceiving while breastfeeding. Many fertility drugs including Clomid, Gonal-F, and Follistim also increase the odds of a twin pregnancy.
Older women generally have a higher chance of conceiving twins. A 35 year old woman is about 4 times more likely to have fraternal twins than a 15 year old! That is because they are experiencing some hormonal changes as they near menopause. This could encourage their body to release more than one egg during ovulation.
Everyone has the same chance of having identical twins: about 1 in 250. Identical twins do not run in families. But there are some factors that make having non-identical twins more likely: non-identical twins are more common in some ethnic groups, with the highest rate among Nigerians and the lowest among Japanese.
Do Twins Skip Generations? Many people believe twins skip a generation, but that's just a myth. The idea that twins skip generations likely comes from the fact that the genetic factors contributing to twins only come from the gestational parent's side.
The mother gives an X chromosome to the child. The father may contribute an X or a Y. The chromosome from the father determines if the baby is born as male or female.
If only 1 twin fetus is affected, it is generally necessary to also abort the unaffected twin or to wait until the second trimester and perform selective feticide through use of the air embolism technique.
The Science of Fraternal Twins. Mixed-gender twins are the most common type of fraternals, some 50 percent are boy-girl.
Monoamniotic-monochorionic Twins
These types of twins share a chorion, placenta, and an amniotic sac. This is the rarest type of twin, and it means a riskier pregnancy as the babies can get tangled in their own umbilical cords.