Driving myself crazy

I swear I feel like I might be pregnant, my dad and very close friend think so as well. I have been on and off nauseous for 3 weeks now and have been feeling car sick as well, constant headaches, I’ve been really bloated lately and my period isn’t due for 11 days, and I’ve been extra emotional lately. I’ve taken a test but it was negative. With my first child I was experiencing these same symptoms and found out that I was pregnant 8 1/2 weeks later. I might test again in a week or so but I’d appreciate thoughts and opinions please