How Long Should Ecosprin And Folison Tablets Be Taken?

Hi, i am 26 years old and my weight is 53kg. Last April, 2014 i was pregnant for first time but after 3 months it was damaged. Now i am trying to conceive than my doctor suggested me to take Ecosprin 75 tablet and folison 5mg tablet. I continue those tablet. Now the question is how long i continue these tablet? In the mean time if i become pragnant will i continue these tablet? pls ans me.