I have a clear somewhat white mucus. I have been tested recently and everything was negative. I have the Meraina IUD and my periods have been regular for a while now. I'm five days late on my period, but I had a little spotting on the first day my period was due. I'm hoping my period just decided to take a vacation and I am not pregnant. I have two kids already so I chose this method of birth control because it was highly effective. Can someone please ease my mind and give me ideas of what else it could possibly be. By the way I am still experiencing slight cramping like I normally do when my period comes on.