Is something wrong with me??

i’ve been on birth control for two years... before i was on it i barely had periods, but they started sort of regulating when i got on the pill, but now i have nothing. I haven’t had a period since like june. I am sexually active. my boyfriend and i didn’t use condoms until about october (because i was way too scared of getting pregnant). we’ve been using condoms since, we slipped up once and he didn’t use a condom but he didn’t finish inside of me.

i deep down don’t think i’m pregnant, but not having a period takes away that reassurance. is there any possibility i could be pregnant if we’ve almost always use condoms (except the one time a couple weeks ago) and i take the pill perfectly.

Also, is there a reason i don’t have periods?? i understand the pill is supposed to lighten them, but i didn’t know that it would take them completely away.

thank you for comments and any advice :)