hi i am married last 2 1/2 yrs but still not pregnant.i checked with doctor had test mine both tube were blocked so they opened only one and other is still block , doctor gave me fertyl 50mg to,2 tablets in a day start from 2nd day of my periods.this is my 2nd month will start from tomorow ,when should i have intercouse with my husband,can i get pregnant with one tube open.please advise me what should i do.should i take folic acid .please help me