Pregnancy, pregnancy test

So I’ve been feeling moody for a while like every thing just pisses me off and then the next I’m happy but back to being angry. I’ve also been feeling a little bit sick like my stomach would hurt and I felt nauseous, but I’m also hungry. Me and my bf don’t think I’m pregnant but you never know and I took a test but it came out negative and I have two other and Idk if I should take them to see what they say or just stick with the negative. HELP ME!