Ok i ended up goimg to the hospital because i was reqlly sick they told me i was pregnant and my hormone count is really low

Mine was just 2 weeks late

Depends on I your regular or irregular

Regular a week irregular a few weeks

Ok thanks @kmharr3. I didnt have this problem after i had my son. So this is new to me

It takes periods awhile to straighten back out after giving birth, Even if you already had some regular ones. Or it could be that you ovulated late. I didn't get my bfp until 8 days late. If it was me I'd wait a few more days. If still negative you can always call your doctor for a blood test to be sure