chemical pregnancy.😐bleeding

I had a chemical a while back. I found out it was a chemical about 10 days later after my AF due date, when I started bleeding. I tested 3 days ago and got a + pregnancy test. my husband thinks its a chemical. I am now 5 days since my period was due. my doctors appointment is Friday. I dont think it's a chemical but my nerves are shot. please if you can post your experience with chemicals.

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