Very confused!

Juli

Looking for advice/encouragement/experience: took letrazole cd3-7, ovulated and confirmed cd15 and has sex that night and few times before. Started progesterone suppositories 3dpo. I tested 10dpo and 12dpo and had faint positive on frer. I also wiped and had very small amount of blood 12dpo. Waiting until Friday to call my doctor. I’m wondering if this has happened to anyone? What was result? Should I stop taking progesterone if the inevitable is going to happen. (Don’t want progesterone to prolong it)