How much liquid Tylenol can I take?

I am 15 weeks pregnant and I am wondering how much liquid children’s Tylenol I can take. I have a fear of taking pills so I have to take the liquid form. 😅 I tried to ask my German OB how much I can take while pregnant but he didn’t understand my question although he speaks very good English. I’ve been taking 15 ml at the most but no more because I can’t find an answer online. These migraines are killing me. 🥲