Chemical pregnancy?

​On this past Monday I took several EPTs (all different brands) and they showed faint positive lines and digitalis said pregnant! Started my period on its due date which was Friday but it only lasted 2 1/2 days instead of the usual 5. I'm wondering if I should still take a test in the morning..? I do see the dr this Friday so I will be mentioning all of this.im very confused and don't know what to do. Any advice? Best wishes to all of you.and thank you for any answers.