When to start counting?

M

Is it true that your pregnancy “begins” on the first day of your last cycle (like when you are suppose to be counting from?). If so, I started last on Dec. 14th, which would make me 7 weeks along... but my doctor won’t see me for my first appointment for another 2 weeks. So that’s 9 weeks in... isn’t this too far in? I’ve had light spotting, cramping and loss of symptoms (and my doctor won’t see me, just said to go to the hospital with bad bleeding) so I’ve already been freaking out over this. But now... I feel like they’re seeing me too late. 😭