My Age Is 24 Ys. I Completed One Year My

my age is 24 ys. i completed one year my marriage life,now i am trying to get conceive from 6 months but not conceive last February i conceive and after 2 moths i got abortion . my weight is 72. last week i went to doctor she gave ova care tablet for me. how many days i can use these tablets? and when i start these tablet after completed my period? is there any weight problem for conceiving? can please reply me?