i really think I'm pregnant. help

I had 2 days of light brown spotting a week after ovulation, I was throwing up both days. since then I've had nothing besides being nauseous & tired. my period is 2 days late. I'm having dull pains in my lower abdomen but NOTHING like my usual period pains. I know I need a test but idk if i should just wait it out. does anyone have a similar experience??