Help please

Kenzie • Mommy to one baby boy 👶🏽💙

so today at my prenatal appointment the doctor told me to try Benadryl or Tylenol p.m. for me not being able to sleep and I was just wondering how many Tylenol can I take ? can I take two or can I only take one ? I’ve already tried unisom and they want me to try these before putting me on any prescribed medicine. I’m convinced neither are going to work because im literally up until 10 in the morning and it sucks SO bad. I’m really hoping the Tylenol helps but who knows.