Trying to conceive 😭

I have been trying to conceive for 2 years already, I do have irregular periods so I sometimes go about 2 months without my period. Me and my boyfriend have been trying to have a baby , I was on birth control depo for 1 year, it’s cleared out of my system. Even before I got on birth control I was not able to get pregnant. I’m currently not taking anything, no birth control, we don’t use condoms, we have been trying to have a baby for a while already and it’s very difficult . What factors could be affecting it? Or how can I get pregnant, I do not want to go to a doctor or anything I feel embarrassed sometimes to ask how I can get pregnant . Any tips ):