ive never had nausea during a period?

Ive been having sex pretty recently and like all month... my backs has been killing me, ny boobs hurt and are sensitive and ive been nauseous wich all arent normal signs of af im due for af anytime between now or the 1st , should i test? ive take some earlier in the month and it was BFN. what wers your symptoms ? i normally havs heavy cramping but never nausea how many days after/before your period di you find out?