Early symptoms

So I’m not on the pill atm but I have been planning to get back on it but for the past couple of days I’ve had cramps and felt nauseous. I’m allergic to latex so no rubber and my fiancé and I are very sexually active. I know it sounds like the start of my period but I just got off it about a week ago. I’m freaking out and not sure how soon to soon is to take a test.