Hi Kim, 
   I've personally nursed through pregnancy and tandem nursed, so I've done
ample research on this topic. 

   The possible risk of nursing during pregnancy is that the oxytocin
release caused by nipple stimulation might cause contractions (as it does in
the minutes and weeks following birth). However, orgasm causes at least as
strong an oxytocin release as nursing, usually less after months of nursing
(since the oxytocin release is typically far less after the first three
months). 

  So, the rule of thumb with nursing through pregnancy is generally that if
a mother is at high enough risk of premature labor as to be put on pelvic
rest then weaning may be advisable. However, if mom is not on pelvic rest,
she can be assured that nursing should be no more risky than sex, as far as
causing contractions. 

As for early miscarriage, evidence shows that virtually no activity
increases or decreases the chances of the all-too-common early miscarriage.
This is very hard for a mother who desperately wants to prevent a repeat
early miscarriage. Unfortunately, that's mostly out of her hands. Premature
labor, however, can be affected by nursing; wherein the pelvic rest rule of
thumb applies. 

  Also, the milk supply does not usually decrease until sometime in the
second trimester, at which point her baby may be getting more nutrition from
solids than most 8 month olds are. I agree that Adventures in Tandem nursing
is a great resource. 

Jessica 

On Tue, 16 Dec 2008 13:54:14 -0500, Kim Scott <[log in to unmask]> wrote:

>Hi all,
>I have just had an urgent call from a mom of an 8 month old who has just 
>found out she is pregnant again. This mom has had 2 prior miscarriages and 
>took 4 years to get pregnant. During the last pregnancy she needed to take 
>Progesterone 100 mg daily for the first 3 months  to support her continued 
>pregnancy.
>Her  doctor has advised that she must wean immediately because 
>breastfeeding may cause problems with this pregnancy. Her baby breastfeeds 
>4 times per day. She does not want to wean but also does not want to 
>jeapordize this pregnancy. I have never dealt with this before and told her I 
>would ask a few thousand experts their opinions.
>She is very anxious and I would like to get back to her as quickly as possible.
>Thanks so much in advance.
>Kim Scott RNBN IBCLC
>NB Canada
>
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