HEADACHE SUFFERERS!?

Summer • Conceived my first month using Glow! Thanks Glow!
Just wondering how often is safe to take Tylenol (acetominophine). I suffered from headaches for a long time and the last few weeks have not been any different! I have tried to just take one pill when I have a headache which has worked but it 2-3 times a week okay? Online it says up to 4000 mg a day! Just a worried first time prego!