Rani a 24-year-old woman presents to her gynaecologist as she has chronic hypothyroidism and wants to conceive now. Her hypothyroidism is well controlled at 75 microgram of Thyroxine. She doesn&;t smoke or drink and doesn&;t have any other medical ailment. She would like to know if she should keep taking her Thyroxin. Which of the following is the best advice to give to this patient?