Should I be worried ??

I’m 11 days late... I spotted 2 days ( not back to back) a few days after af was due and I on sunday tested and it’s negative. I went to Planned Parenthood and got a negative as well got told to come back in 2 weeks. Is there a chance I’m pregnant? I had a nosebleed on Sunday. I’ve been feeling nauseous since last week and my sense of smell has been thru the roof.