Im 19 weeks and have been taking 150mg of aspirin daily since about 12 weeks, it wasnt really explained to me why other than because my bmi is 37.5, anyway my mother in law seems concerned that 150mg is too much, i know she is probably just being overly dramatic but has anybody else been prescribed this dosage and can explain what its actually ment to do? My MW is on maternity leave so i cant ask her.