im trying to get pregnant.

I'm not on birth control. I haven't been in probley 1 year in 10 that or so my last two boyfriends my current n my ex have had sex with no protection. I knew my ex couldn't get girls pregnant because his own problems but my current boyfriend is 30 turning 31 soon Nov. 19th and we don't use protection and we been dating sense Nov. 4th of last year and we have been trying sense 3 months ago. nothing has happened and now I'm following this app correctly and accurately. what should I do.? any opinions to get pregnant fast or soon.