4 weeks faint lines?

Jez • Wife🤍 mommy X2 👶🏼🦖 + 👶🏼🎀

Today I went to the doctor for a confirmation of my pregnancy... he did a urine sample and said it was very faint but is running a blood test to see my hcg count.... I’m 4 weeks and a couple days. Has anyone else had this problem? He seemed kind of concerned.