Benadryl while pregnant

Bri • Married and mother to babygirl💓

My doctor said its Safe to take Benadryl while pregnant, so i figured it’d be the two tablets every six hours ( i usually only do two once a day ) but now i look online and it says something about only 25 mg ? Should i be lowering my dosage ? Doctors never really gave any dose restrictions just told me it was safe to take ... I’m 33 weeks