Cycle day 26

Last month I started 3-4 days before AF was expected, during fertile window we had sex all week during that time. AF is (not) expected to come 7/11,7/13.

Had sex this morning around 12-1am and was just nauseous the whole time, and then woke up nauseous. I did test at 8dpo but of course it was negative😢. I'm currently 10 dpo today. Could this be a pregnancy symptom? Here is my calendar for june.

I know the only way to know is to test but will it be too early still?