Is it normal for an OBGYN to...

After I got my BFP from a hpt I called my ob thinking I would need to see a dr right away to talk about prenatal vitamins and pills I should be taking for a stomach disorder (that I have now stopped thinking they might not be ok while preg) and ....don't they usually do blood work?? When I called the secretary counted my weeks and was like " can't not see the baby yet you can come for an apt Oct 9th" I said I don't need to see the baby arnt I supposed to come in earlier to just confirm the pregnacy. She said no can't see the baby! So now I an concerned... Should I try to get into see another ob? I am also worried since I will be running my first 5k on Oct 1st I am not really a runner and have trained but not much... Doing it do fun with friends. It's also a zombie run so zombies will be popping out and scaring the shit out of us... And I want to know if it is even safe for me to do now? So I am wondering is this normal to not see a dr until 7weeks for just your first scan? I on here saying the go to dr for HcG levels and all so I am worried now??