Hcg levels 426 at 4 weeks 3 days

jj

By my lmp I'm 4 weeks 3 days. I had some bad cramping that lasted about an hour so I went to the er and my levels are at 426, dr said about two weeks but didnt really specify. He wants me to have my levels rechecked in 48 or 72 hours, is this normal levels for 4 weeks 3 days?