Nicole Kidman was recently photographed attending the Australian Open with a strangely different look on her face (see 1st photo). Could it be that she had to quit Botox while she is pregnant? I think so. Botox injections can give a person what I call the "Botox brow." (See 2nd photo) It is an overarching of the eyebrows that can give a somewhat sinister look. Botox does tend to wear off after 3-4 months, and the first photo may be what Nicole looks like au naturel.
I wouldn't Botox someone if they were pregnant either.