I asked this question and a person answered and got me really scared!
http://uk.answers.yahoo.com/question/index;_ylt=Asfcg_jy2xO3I0L.A3wNJykgBgx.;_ylv=3?qid=20101207213508AAMFa40
I'm 21 weeks pregnant and My mother has diabetes i don't, i had a really bad migraine earlier but not since then...