If it makes you feel any better, I was AWFUL when I was 5 weeks. I knew I was being a horrible horrible person to DH but I just couldnt' stop. Really I am glad it passed, and it did. I still have ups and downs, but the "mean" me seemed to disappear prob around the 7 week mark.
It's hard though because Im always emotional so I can't say it's any worse, but I know Dh think's it's pretty bad!!
but hang in there, speak to someone incase it's more than just hormones, but know that the hormones are powerful things and if there's nothing wrong, you are sounding normal (to me anyway)!!! xoxo