Test in 3 days

According to my wonderful ovulation apps I'm supposed to take a test in 3 days. But that past 2 days and this morning I've had severe nausea. I haven't thrown up yet (sorry tmi) but it's like a sea sickness feeling. Body temp is normal, nose is stuffy due to new pets in the house, no cough, sore throat or anything like illness. Am I reading to much into this?! I hope not but I understand if I am #babyhungry