when are you nauseous?

So my Af was due today but with no sign of it I pushed my expected date back two days. for the past week Ive been having really bad nausea throughout the day. I want to say my horrible eating habits are to blame, Ive been eating once a day ussually around 4-6 pm. but I feel like its more then that. Im 11 dpo.

so I guess my question is, do you girls usually get nauseous around af time? did anyone who has tested positive start experiencing nausea around 11 dpo, or is that too early?