Last night :(

So today I am at 4 weeks 3 days. Last night when I went to the bathroom I was bleeding with light pink blood and maybe what looked like 3 tiny blood clots that were darker. Today is my expected period. I freaked out and went to the emergency room. They did two types of ultrasounds and they said they couldn't see anything and if I was pregnant it looked like I was only 2 days pregnant if that.

The doctor said this could be my period or this could be the very beginning of pregnancy. He then went to say my for my hcg levels were very low like s 7 or something. Don't remember the exact number because I was so upset.

All in all he said if it gets heavier and continues to bleed it's my period and will be considered a miscarriage. And if it is short with inconsistency of blessing then I might....be pregnant. He said to know for sure I should wait till next Friday to retest to determine if it stuck :(

I'm so defeated.