Need advice

So the last 3 weeks I've been nauseous . So very nauseous. And sore everywhere (I don't work out I'm a cashier so there's not a whole lot of movement I'm not used to) and the other day I almost threw up cuz I smelt French fries and I love French fries. Boob's are slightly sore not to bad. And my stomach is harder than it ever was. But IDK I can't shake this pregnancy feeling. .. I had a Oct period 7-12th . The 13th is when the nausea hit.. I did read something where some women have had periods and we're nauseous after and found out they were pregnant.... IDK I need advice should I take a test ?