I'm really confused, Help!!

So my period was supposed to happen a week or two ago but never showed not even any spotting or normal signs. So because of this I thought I might be pregnant but I took a test last week and this morning and they were both negative. I don't understand why this would happen. I have never completely missed a period before. I had been told I have a hormone imbalance so could this be affecting the test accuracy? My partner and I also think it is possible I had am early miscarriage in early April although we are not sure. Any advice please.