Beta numbers

I am VERY early pregnant. Took a test Monday it was negative. Went to the dr Wednesday (our fertility clinic bc we were going to start our first IUI, but had done my 3rd round of femara before I saw them). Well then had me in the office Wednesday to figure out why I hadn’t started yet bc I was ready to start our IUI. Well. Turns out my beta levels were at 14.5. She said they were low but she isn’t sure when I conceived bc of the femara & irregular cycles. I’m pretty sure I ovulated super late & implanted late. Anyways. I got blood drawn again Friday & its 46. Please tell me this is great news. Going again Monday.