My cycle has been every 23 days. Today Is day 21. I took one test 2 days ago and one yesterday and both can up negative. The past 4 days Iv been having light cramping like af is coming and have had nothing. This is not usual for me usually when I have cramps af comes same day or at least by next day. The only time I remember this happening was when I was pregnant with my daughter. Also the past 3 days Iv been slightly nauseous and today it’s worse. I guess my question is has anyone had nausea before af was due? Or had nausea symptoms and got a negative test?