100 units jaw Botox before I found out I was pregnant?

Kaushiro,
Studies of botulism toxin A injection in pregnant women/animals are limited; however, these studies suggest that botulism toxin A does not cross the placenta, perhaps due to its large size. 
I would consult with an OBGYN for close monitoring and advice. 
Best of luck. 

Thank you for your question kwills. I understand your concern. Botox is a purified protein
used to address wrinkles associated with facial expression. When injected into
the skin Botox will relax the muscles and smoothen out the overlying wrinkles. The
most common areas of treatment are in the upper face. These include the
horizontal lines seen on the upper forehead when one raises the brows, the
vertical lines seen between the brows when one frowns (frown lines), and the
crow's feet seen around the eyes when one smiles.Botox can be placed in the masseter muscle in
the lower face to contour the lower face and address pain associated with TMJ.
In this area 20-40 units of Botox are used per side. Depending on the reason
for the enlargement of the muscle, permanent results may be achieved. For
example, some people have a habit of grinding, clenching, or biting their teeth
subconsciously. Often times this happens in their sleep when they are not aware
of it. Botox placed in this muscle will relax the muscle and the grinding,
clenching, and/or biting will decrease. This will reduce the size of the muscle.
If the brain gets accustomed to this and the person stops grinding, clenching,
or biting, then the muscle will not become enlarged or as enlarged again. However,
if the habit starts again, the muscle will likely get larger.The safety record of Botox is well established.
The product has been used for over 20 years for a variety of treatments with
minimal side effects. Botox is amongst the safest treatments for treating
facial wrinkles.However, the safety and efficacy of Botox treatments have
not been determined in women who are pregnant, trying to become pregnant, or
breast feeding. There is also no evidence that Botox crosses the placental
barrier, but such studies have not been published. While some physicians are
comfortable treating women who are pregnant, trying to become pregnant, or
breast feeding, in the absence of data I err on the side of caution and
recommend that my patients avoid Botox and other such cosmetic treatments until
they are no longer breast feeding.With any injection, there are risks such as
pain, bleeding, bruising, redness, swelling, tenderness, and infection. We take
special precautions to minimize these risks such as using a painless technique.
We also treat bruises with a laser as early as the next day. Bruises usually
resolve within two weeks if untreated. After a laser treatment bruises usually
resolve in 1-3 days, but may still take two weeks for full resolution. In
addition to these risks, with Botox there is also a risk that the product spreads
or diffuses to nearby structures. Spread to nearby muscles can lead to side
effects such as the temporary appearance of droopy eyelids or a temporary
asymmetric smile.After a Botox treatment, I recommend that my
patients avoid heat exposure, alcohol consumption, and strenuous exercise for
24 hours and not lie down flat for four hours. This is because all of these
activities may possibly lead to the movement of the product and consequent side
effects such as droopy eyelids as described above. Although there have been no
definitive studies shown that these actually occur and some physicians do not
provide such aftercare instructions, in the absence of data I err on the side
of caution and recommend that my patients avoid such activities.It is important to understand that any female of child bearing age who is sexually active has the possibility of being pregnant. We discuss these risks with patients before any treatment. If I had a patient in a situation such as this described I would tell her that while it is unlikely that there will be any detrimental effect from a Botox treatment on a fetus, the truthful answer is that we do not know.Please consult with a doctor for specific
recommendations. Good luck!

Botox should not be used in pregnancy, but there are many women that don't know they are pregnant when they use it. There is no way to know for sure if it affected your baby. There are very limited studies available, but most of them show no harm to babies or moms. Hope for the best, try to find peace, stress can cause more harm than Botox.