Hcg levels 228 at 4w4d

My hcg levels are 228 at 4w4d.... I have had 2 miscarriages in the past and praying the one sticks! I am terrified my levels aren’t high enough.. has anyone else that is high risk had levels around this at 4 weeks? The graph online say it’s still within nor range, but it still really worries me because it sounds so low.