HCG question

Went to the hospital when I was having cramping on the day I found out I was pregnant about (3 weeks 5 days) and my HCG was about 43. Just got my HCG checked (5 weeks 1 day) and it’s about 7,200. The doctor said he feels it should be higher. I think it’s fine but for those who have been pregnant is this okay? I’ll be following up with my OBGYN since he isn’t one.