HELP! What could be going on???

Ashley
I'm not exactly sure what is going on. My last period was on August 27th, all normal and lasted the 6 days it not all does. I got married on September 10th and we have had sex several times since then. We went on our honeymoon the 17th-25th of September. 
My period was supposed to start this past Friday and is has not. I took a couple tests when we got home from our honeymoon, all negative. I took another test yesterday and it too was negative. I have experienced some bloating and spotting the past few days but my period hasn't started. Not really sure what is going on?? Anyone else in the same boat or have any advice??