Pregnant women

Any pregnant women continue their use of 400mg magnesium glycinate and 400mg of b2 for aura prevention when they found out they were pregnant and throughout pregnancy? (My OB said it was totally ok to use and continue) I always got them but maybe 3-4x a year. And During my first pregnancy I never had a single aura migraine at all.Mine seem to be hormonal during my luteal phase. My monthly auras started when my first child turned 1.5.