Fresh cycle, CD 3 bloods HCG is a 2.4?

We have been TTC #2 for 2 years this month. I ovulate on my own and conceived my baby girl who is now 3 1/2 the first month we tried. We've tried 3 months of treatments with gonal f, 1 round with timed intercourse, and 2 with IUI February-April. We took a break and I had a chemical pregnancy in May..Mother's Day to be exact. Today, we started a fresh cycle and this morning I got an US and Day 3 bloods. My estrogen and progesterone were very low which is of course normal, however my HCG was 2.4. I used a round of clomid this last cycle and my period was late. (32 days versus 28-30) I *thought* I saw extremely faint lines on some cheapies but dismissed it. So now instead of taking our first dose of meds tonight, I have to go for another blood draw in the morning. Can this be leftover hcg from my original chemical? Did I have another? All draws previous cycles my HCG was <1. This morning my US was normal with 5 small follies on my right and 7 small on my left. Anyone have any thoughts? Hoping it just decreases so we can get going this cycle!