So things are completely werid for about a month now. My last period was spotting only, and only for a couple hours for three days my period is usually 4 days medium to heavy last day light. Going on, Ive been completely moody and emotional far more then my normal. Lashing at my husband or being completely clingy. I blew up at my sister which is just not my normal. So, I took a pregnancy test it was negative.... kinda heart breaking since this is our 4th month ttc. My appetite has been on extremes either everything I can find or nothing for days. My husband and I are completely confused and no idea what to think. Thankfully my husban has taken it pretty well. Help???