Is it too early to see anything?

Hi guys! I tested positive Sunday night 8/11, had a positive blood test 8/13 and expected period is supposed to come tmrw 8/16.. I had my ultrasound today, but the lady didn’t really say much. She just kept asking if I had any pain or if I passed any tissue. I was watching her & she was only measuring my uterus & left/right ovaries. I didn’t see any gestational sac or anything. She told me she’s gonna send results to my OBGYN. Is it too early to see it or could I have had a chemical pregnancy? I took blood/urine test today to see what my levels were so I am waiting for the results.