Beeeeeeeen trying

I have been trying for years to get prego by my hubby but noooo luck sadddddly and my period is allllll over the place, its never really on the day its suppose to be and it is sometimes light and sometimes reallllly realllly bad amd sometimes crazzzy scary bad. Annnnnybody have any advice for me im worried that i may never be able to get prego?!?!?!?!?! And i am one that would looove to have a baby and id be verrrrry sad if im unable to because allll the other women in my family are the type of women that u look at them n they get prego.