I slowly stopped taking my birth control...

for a while I was probably remembering to take it like 5 times a month & now for the past like 5 maybe more months I haven’t been taking it at all cause I just can’t remember. Even when I was really taking it I always forgot 2 or 3 pills and I was told that even that can mess it up and pregnancy can happen. I have sex all the time is it weird I’m not pregnant if I’ve basically had no form of protection for like 9 months?