super inconsistent periods?

hi all! i am 20 and have been on birth control (pill) consistently for 5 years now. i usually get pretty light periods but they are so inconsistent. im sexually active w my boyfriend so i do like taking the placebo pills for peace of mind LOL but my period just picks and chooses what months to come.

for example: in april, my period came on a saturday night. may was a tuesday morning. june i didnt get it. im waiting on my period now, my week starts sundays at night and i take my pill at the same time RELIGIOUSLY. even on months my period doesn't come, i have all the symptoms. cramps, bloating, acne, cravings. idk if this is something i need to worry about or not, i feel like bc should make it more reliable but i don't feel that way. i like the pill im on so i wouldnt want to switch it if possible.

it scares me a bit because i know im being safe taking it and using contraceptives, so i guess im wondering if this is something other women also deal with? idk, any commentary or tips would be useful.