looking for some advice

I suffered from a miscarriage when I was about eight weeks along. I am not 100% sure when it happened since I had bleeding off and on for a while since I had the positive test and never had heavy bleeding like you get with a miscarriage. I only know I did because when I went in for my first appointment at 9 weeks ( doctor wouldn't take me earlier) there was nothing on the ultrasound and the hcg was only at 200 and then 100 two days later. I have been having sore breast and very tired for the last couple of days and hungry and had mid cramps a couple of days ago. Since I don't know when I miscarriaged I don't know if these are signs of pregnancy or AF coming soon. How long do you think I should wait to take a test? I don't want to get mine or my husbands hopes up