Whats the possibility? Update

I just had my first period for the first time in 5 months due to stress from being hit by a semi truck back in October. We haven't been using protection, because we want more kids so if it happens it happens.

Do yall thing I'm pregnant?

I had some dark old blood discharge a couple of days ago. I placed a tampon in and nothing.

Update

So I've taken 2 test the purple .88 cent ones from Walmart, but came back negative. I still haven't started my period and I'm not sure what's going on.....As of tomorrow I'll be a week late.