going crazy

Charmaine.
So this is a little history I found out I was pregnant back on 5/9 and then I started bleeding on 5/12 and my doctor confirmed I was having a CP. glow had my AF logged ask 6/10 it never showed up and it has it logged now for today and so far nothing and it just changed it to 5/14...I'm so confused I took a test Saturday and it was negative so I'm feeling lost what should I do...is this normal for this to happen after a chemical pregnancy?