My fiancee came home on leave and we really want to have a baby. I had my period on time which started on june 5 and ended about the 9th. he arrived aug.16th and left aug.26th. At the beginning of his second week here i started feel nausus and it only progressed. I looked into early signs of pregnancy and took at home tests that came out negative. I have been having headaches, cramps, nausia, cravings, small weight gain, lower back pain, and sore breasts. They always say to go get blood work done but I want to feel that its necissary or is there something else seriously wrong? I have really been craving cheesecake and never really liked it before i started feeling like this. Also within the last few days i have been some what stressed but depressed. Can you please lead me in the right direction.