Same situation here. I'm 33 years old married. Been trying to conceive for the past year, no luck. I used an app to track my cycle to know the exact day and we did it on that day last month. I never missed my period ever. This month, I'm already 5 days late. I have slight cramps, fatigue, a small amount of white discharge and headaches. Tests show negative, I took the last one yesterday. Body temperature is 99.32F.
Could I be pregnant?
You probably have resolved this by now.
Were you testing with first morning urine? That's important.
If you aren't having any symptoms at all - no breast tenderness - it's unlikely you're pregnant, considering you've been testing negative. Do you do cervical mucous observations to determine when you're most fertile?