Do you test before your period is due?
For my first pregnancy, I think I was only a day away from my period but this time, I have been testing since about 7 dpo!!

Do you test before the HPT says you should?
Yes! Just in case....

Are you a serial tester? So far, yes
ie do you do one very month? and do them repeatedly?
I have poas about 8 times now (this month) and I am only 12dpo! I hate it but I'm obssessed! I'm going to try and control myself and not test again until day after af is due (Tuesday).