Help !!!!

I’m 2 days late my periods are always on time! I’ve taking 2 first response that come back faint positive, 1 clear blue that is faint positive , and one first step that’s faint positive. I went 2 days ago after the test to have blood work done to confirm it , but they said my hcg level was a 4. They want me to come back tomorrow for more blood work.. has anyone every had this happen to them?