late period on the pill

so i started the combined pill in january and have been having sex with a condom too ever since. my periods have been kinda irregular since then. at first i got it the first day of my placebo pills, the next i got it the third day and then i got the first day again. For the fourth month i got a new pack but if the same brand but noticed that there was no placebo pills now. I got my period the day before i would’ve started the placebo pills last month.

now eve is telling me that i’m 3 days late but i’m only on the last of my active pills. I obviously use the pill as protection but also condoms too. i’m just wanting to get an opinion at whether i should be worried or if it’s normal because my period should start in a couple of days when i’m on the week break, however that would make me 5-6days late. are my periods supposed to be this irregular?