Sooo confused

Alyssa

So I’m currently 10 days late on my period. Back story I went in for an ultrasound to check on my cyst that’s on my right ovary and it currently is leaking fun fun but when they were doing an ultrasound they saw a sack of fluid in my uterus my doctor said it could be early pregnancy. My bloodwork came back negative and home test have as well. I had some light spotting earlier yesterday so I put a tampon in and took an hour and half nap with my son went to the bathroom and no blood on the tampon. Could I be pregnant and it’s just too early?