Some people (including some obstetricians) might tell you that
you shouldn't nurse while you're pregnant, as it may harm your
fetus. There is no need to worry about this unless you are
severely malnourished (which you should
never be, especially if you are pregnant or lactating).
They might tell you that nursing during pregnancy might
increase the risk of miscarriage. While it is true that nursing
causes uterine contractions (due to the hormone oxytocin),
there is no evidence that this may lead to a miscarriage. In fact,
you will experience more severe uterine contractions during
orgasm. If your doctor hasn't told you to avoid sex during
pregnancy, nursing is perfectly safe too. If your doctor has told
you to avoid sex, find out why. If uterine contractions are not
among the reasons, then nursing is still safe.
You might experience some breast and nipple tenderness during
pregnancy, especially in the first trimester. You need to decide
whether you are willing to nurse anyway, or whether you would
rather wean. If you choose to continue
nursing, you can take some comfort in the fact that the tenderness
is likely to decrease soon. If you wean,
your child might want to resume nursing when the new baby is born.
See tandem nursing before you make your
decision.
Some time during your pregnancy, your milk will decrease and
its taste will change. It will eventually change into colostrum.
Many toddlers wean themselves when
this happens. Some, however, are happy to continue nursing. Either
way, the decision to tandem nurse or
not is yours.