Hcg level ???

Nikita
Hi guys. So I got my very first BFP on the day af was suppose to arrive. (4weeks pregnant.) After trying for almost a year. I went for blood tests that same day and my hcg levels was 163. The nurse was rude and said that the levels are really low and that I should come back for more tests in a week's time if I didn't start bleeding in the week. What the hell??? What was your hcg levels? Please someone tell me it's normal? I'm 4 weeks and 3 days now. Will wait till 5 weeks and test again....