Not sure...

Kinda feeling guilty as hell right now... I got home from work and my fiance asked for a towel. So I along with both housemates pointed him in the direction of towels...(different rooms)... He got pissed and in turn I did to and screamed at everyone to shut up...totally out of line i know. I don't snap like that, I've been exhausted for a week or so no matter how much sleep I get, feel dehydrated no matter how much water I drink and have had slight cramps off and on for a few days. I'm 11 dpo af due in 6 days and tested at 9dpo with a bfn...I just don't know what's goin on with me...any input appreciated