Has this happened to anyone else!?

3 days past due on my period. Husband says my nipple color has changed some. I get major headaches and get absolutely sick to certain smells. I have been tired a lot lately. A lot more than normal. I’m very very very moody and more sensitive than normal.

BUTTT...

The only thing is that all tests have come up Negative. But I have a friend that says hers didn’t show positive until 3 months and she had to get a blood test done at 10 weeks in. She knew she was pregnant because her first pregnancy felt the same.

•So please please pleassssse help me out!