Missed period

Rachel
Hi I'm new to this. I have never had kids but I would really love to. I was supposed to start my period the 24th of this month. I had one earlier the beginning of this month, now that my period is due I haven't had it. No spotting or bleeding nothing. I've had a late period before, but it was only a couple days late which was stress related. This one is a whole week late pretty much. I've had cramping, some bloating, constipation, heartburn, and fatigue. I have been taking ibuprofen for my back since I blew a disc and will be having surgery the 5th of Dec. If any one can give me any info on what to do I'd greatly appreciate it.