Low HCG level?? Help

I received my BFP yesterday (11 dpo). I went into have blood work drawn to confirm the positive today with my RE and my HCG came back at 77. I believe I am 12 dpo does this seem low? The nurse that called me said they want to see a number over 100. I go back in on Tuesday for more blood work. Sooo nervous we have been TTC for over two years!!

The top test is from this morning and the bottom test I just took.