Someone please ease my nonsense!

Okay I know this is going to sound so insane but I just did a whole bunch of late night googling (I know trouble lol) and I just really need someone to ease my mind and remind me of my senses!

So I had sex back in like September( **and haven’t had sex since), roughly about a week before my period, and I did get AF.

Now this month, I’m 2 weeks late? In the back of my head I know this could be for numerous reasons.. but according the women on baby center it’s pregnancy? 🤦🏻‍♀️

But please tell me there is really is no way I could be pregnant? I don’t mind testing but I really don’t want to waste a whole test on my own nonsense.