Hcg levels

According to my guess of my last period it would put me at 4 weeks and a day exactly pregnant I found out one week ago and with that said with in this week they have checked my HCG levels three times

Starting off at 230 Monday morning

Wednesday morning 315

Friday morning 335

My ob said to expect a miscarriage and I would be bleeding this weekend......

I have no other symptoms no cramping or bleeding!

My only symptoms are of pregnancy itself!

We did an ultra sound the morning of my first hcg rounds and there was nothing to see!

I really don’t believe this to be true and in my heart I don’t even want to go back to the dr for a few weeks unless I have a issue

What does everyone think?💔😞