7 weeks and all I want to do is cry and sleep

Jessica
Is this normal? I hate the changes my body is going through right now.... at first I was excited and embraced every moment.. but now I just want to cry. This is my first and my fiances second- but first actual experience with a pregnant woman. He doesn't get why I'm crying all the time and he thinks I'm being melodramatic. This is so hard for me.... someone help.