Congratulations Sandra! What happy Christmas news.
Relax... If you can see a positive from arms length and you have used Crystal clear I would feel confident in thinking myself pregnant if I were you! Most HPT's can detect lower levels of hcg than they advertise. Crystal Clear has a good reputation. I have always (and this is only me, every woman's body and every pregnancy is different) been able to get a positive test a few days before my AF is due.
Do another test on Thursday morning and it is very likely to be stronger and darker. Think of joining pregnancy after miscarriage and loss, the women there will support you and help you through. The early stages of pregnancy after suffering a miscarriage can sometimes be a bit scary.
Lots of love and hugs to you!
Deb