Hello, I Have Juvenile Arthritis And I Am On Medication

Hello, i have juvenile arthritis and i am on medication since 12-13 years of age but at the age of 17 i started taking Arava (leflunoamide) and i continued 3-4 years but after that i stopped. During my pregnancy i did not used any RA medicines but i did not had any pain or inflammations, no symptoms of Arthritis. But after 5 years again i am having pain and i started medicines including MTX. So should i again start Arava course?