Extremely Headache

Since I 5 weeks pregnant until now, almost 7 weeks pregnant, everyday i get headache everyday. These few days its getting worse, for 3 days continously i feel like migraine (i have history of migraine (currently refer to Neuro Medical Hosp Selayang). 1 tablet 500mg paracetamol do not give me any pain relief. Normally when i in this situation, i will take Amitriptyline (prescribed by Neuro Medical Hosp Selayang) and it will getting me much better. Since i am pregnant, there is a limit for medication.#pleasehelp