chemical pregnancy

I had an early miscarriage on Sunday. my husband and I are ttc for #3. I started spotting last week a day before my period was due but it was very light. I tested because of how light it was on Thursday. Typically heavier for me. I had a faint line Thursday and Friday morning. but the spotting continued. I was nervous because with my other two pregnancies I never spotted. The lines on the tests never seemed to be getting darker they were very faint. however every test I took between Thursday and Sunday was positive. I thought maybe it was just early but I also felt that I was going to miscarry. well Sunday I started bleeding red and heavy. still bleeding very heavy. I am very sad. my husband is sad as well. I am trying to be hopefully for this cycle but I'm nervous. I am a poas addict when ttc. but I am hoping I can restrain myself from testing early. please tell me what happened your next cycle after chemical. did you have your period at the normal time ? did you count the start of the bleeding as your first day of period? did you conceive shortly after chemical?