Safty of baby Aspirin for pregnant My wife will enter the second trimester after 2 days.. she has family history of hypertension, heart diseases, and strock. sometimes she had abnormalities in BP, hyper or hypo. One doctor adviced her to take baby aspirin 81mg as protective when she get the abnormalities, if not usually, specially when she has high BP. She feel these days headache in the forehead, and behined, and her BP seem to be normal, and she want to take baby aspirin as a protective. We read about it, and we found that its category C. what is your advice dear??