Two positive pregnancy tests, one negative

Hello all,

I took two tests yesterday (clear blue digital) which read pregnant, and a (first response) which also read pregnant even after peeing multiple times. However the line was more faint, but definitely noticeable.

I couldn’t believe it but decided to tell my husband. This morning I took a first response pregnancy test again just to see if the line was more pronounced and nothing read. It was negative.

Is this common? I’m going to the doctor today to have HcG levels read so they can give me a positive or negative, but I’m so confused. My husband was SO surprised when I told him and now I’m mortified that maybe I jumped the gun and am having a chemical pregnancy. Any advice welcome!