Can someone tell me if its to early?..

Taylor
My period is suppose to come in three days, but glow says to take a test now. Is it to early? I've been having a lot of symptoms for the past 2 weeks, like moodiness, fatigue, little cramps, sore breast, stomach twitching, etc. But, I'm not so sure about taking one now.. Can someone give me advice on what i should do?