help????😰

i got the implant almost exactly 4 months ago. they told me it would take 3-6 months for my period to regulate back to normal. end of june/beginning of july i was having my period every other week for 6 weeks. and now i haven't had anything for over a month. i'm two weeks late according to eve. me and my boyfriend don't use protection. idk if i should be worried or if i'm just freaking myself out 😩