how far along...

Laura • Wife & Mother of two❤
I do not know how far along I am:( My dr went by LMP which was dec 23, 2015. My periods are also irregular. So if that was true, i am about 7 weeks now. But when I got my HCG Serum Quant back from having a blood test, my levels came back as 37. I am so lost. I really wanna know like now.