What Is Going On With Me?!

Megan

So my period is 5 days late. My husband and I have been trying for 4 months to have another baby after 3 miscarriages in the past since our daughter was born. I have had nausea, headaches, indigestion, gas, sore breasts, mild heat flashes, insomnia, higher sex drive, fatigue, crazy moody, and my cervix is high soft and closed. All the signs are there yet my tests are negative and my period is late. I just don't get it :/