Should I test!!! I can't wait!!!?

So I had my period on the 21 of April I have a 3o day cycle.. I had on the 6 of may the day before ovulation day and it's my 10dpo today I have 4 days till my period and I have no signs of period I usually get cramps and sore but today I just feel nauseas and Hugh headache and Sleepy and tired idk but I'm uming I'm pregnant but idk if it's just me any wrong info with my ovulation do tell me?