15dpiui

I am beginning to get frustrated. It has now been 15 days since the IUI and I am still getting negative tests.. and no sign of my period in sight. What the heck?! I feel like I should have gotten one or the other by now and now I am just in limbo. My doctor never scheduled a beta to be done and I am thinking of calling them to see if they can put one in for me. I leave to go out of town for 2 weeks in another 3 days so I would like to have somewhat of a clue as to what is going on before I leave. I just want an answer!