Hello Sir..... I M 30 Yrs Old N I M

Hello sir..... i m 30 yrs old n i m tryng to concieve fron last 8 to 9 months but not gettng pregnant.... I have done all my test .. .. Everytgng is normal.... I have gain my weifmght alot i was 56 kg n now it is 62kg.. .. I have told my doctr abt my weight ... He gave me metital 300mg for 3 months.. .. Is there any chances of gettng pregnant