do I still have a chance?

Ashley
Okay so every month I usually start my period 32 or 33 days. Well it's obvious that my period is late!! I have cramps here and there nothing to bad.  They don't feel like period cramps. Also I have the shits 😂 and I'm so gassy! Like today it was hurting me really bad. Do I still have a chance of being pregnant? I guess I ask because I've taken 3 tests and they all have been negative. :( 
Advice?