No Period Because Of My Bra ?🤔

So I Need A Bigger Bra But My Mom Won't Take Me To Buy One . So I Started Experienceing Chest Pain And Other Symptoms So , Obviously I Googled The Dangers Of Wearing A Bra That's Too Small. And Almost All The Things That Were Listed I Was Experincing 😳. A Couple Of Websites Said Blood Circulation Would Also Be Lost And Can Lead To Breast Cancer. Which I Am Not Okay With 🙅🏽 But My Question Is Can My Bra Being To Small Affect My Period Being Late ? Because I Was 6 Days Late And I Know I'm Not Pregnant Or Anything Like That  Because I'm Too Lazy For That 😂.