tests

i took a few tests a couple weeks ago after i had a had spotting for 3 days instead of a normal period and tmthe spotting was 3 days earlier than it was meant to be... anyway the tests came back negative but over the past week the feelings i had have gotten stronger andnstronger more nausea all day and hot flushes throughout the day sore boobs sore back. im scared to take a test again incase it says negative after trying for 3 years and all this happening i dont think i could take another negative. so i really wanted to know if anyine else had, had this happen to them?