Can you take Tylenol with codeine and Tylenol pm together?

Yes. If you're sure it was Fiorinal, which has aspirin.

Fioricet, has acetaminophen, which is Tylenol. So, please be aware that 4000mg within 24 hours (1000mg every 6 hours) is the maximum safe dose.

Also, since the pregnancy category was checked off, please make sure you're OB/GYN is aware that you have a medication containing aspirin that you use. There are some people where low-dose aspirin is a therapy used during pregnancy, but it is normally avoided.