7 days late

Eleanor

I’m never late on my period, never! I have been trying for a baby but I have no idea what’s going on I took a test 2 days ago and came up negative but as I’m aware the hgc levels need to be high enough to detect on a pregnancy test, it’s not normal at all for me to be late. I’m worried can someone please tell me what’s going on? And please don’t say maybe Iv ovulated late becasue I know that’s not the case.

Thankyou