I started birth control a week late then changed bc after 1 mth i had in between and haven't had a period?

i started birth control a week later then i was supposed to and my period came on a normal cycle a week before the blank pills then the next month i switched birth control carriers because of coverage issues. I took thoes pills a week late too and had unprotected . Right after i finished that pack i stopped the pills all together because it was too much of a hle. Since i started that last pack i still havent gotten a period. Im worried i could be pregnant but im not really sure if im just not regulated again. Im a month late and im really worried.