Very early/first signs of pregnancy?

Coopaloop

I'm sure you guys get asked this all the time, so I apologize in advance if this is redundant.  I suffered a miscarriage in April and am so, so hopeful that this is going to be "our month" in terms of conceiving.  I have been feeling a little off - slightly nauseous, lots of hot flashes and certain things are sounding gross.  I know, I know - these could all be just flukes OR I could be getting sick with the flu or something, but like I said, I am so hoping it means something more.

 I wanted to ask when you experienced your first pregnancy signs/symptoms?  I know it would be rare to feel these things before getting a BFP, but I don't think it is impossible, either.

Thanks in advance.