Scared and confused

kernisha

Me and my ex had sex the first week of December ... it was during the peak of ovulation...I had what I thank is implantation bleeding on the 22nd of December...My period suppose to came on the 30th but it never came... I want to test but just scared that I'm get a big fat negative...but I'm confused I want to test but i don't want to get bfn... What to do???