Pregnant???

My period was supposed to start two days ago. But for the past 4-5 days I've been experiencing a lot of early pregnancy symptoms. Like the sore nipples, constant gurgling in stomach and below stomach, peeing more, ridiculous bloating and sharp pains in my uterus area. I haven't really had a appetite. It hurts to bend or move certain ways and the gasiness is crazy. I took a test 2 days ago and it said negative. Do I test again? Advice please!