Possible BFP????

last month i experienced a light period, But it was only 3 days and normally my periods are Super heavy and last 5-6 days. it was also a few days later then my period should have been. my period is like clock work so i'm confused. i tested and got negatives when using Dollar tree brand pregnancy test because i assumed that was my period. Recently i've been having headaches (which i never have) and it feels like i can't sleep enough (also not normal. i usually can't sleep past 9:30...

anyway, i took a ovulation test yesterday and both lines were bright pink. i had taken some a few days before and they were negative...

Any thoughts of what could be going on? i really don't wana test because those negative really suck 😭