Weight Loss?

Weigh in yesterday.  I was excited.  I've been tracking the food, even the 10 Frito's this weekend with the tablespoon of bean dip!  I have 30 points on Weight Watchers a day with 49 extra for the week and if I want my exercise counts as activity points.  I don't use the 49 or the activity points usually so I've been following the 30.  The first week I lost 2.2 pounds, YIPPEE!  Last week I gained .2 pounds, BOO.  Last night I was eager to step on the scale as I felt that I lost.  I felt it!  WHAT!!!!!!  I was up .4 pounds!  Well, crap!  I don't, don't, don't understand.  I've been living on veggies and very little rice, bread or potatoes.  I've been eating fish and chicken and the one beef meal this week was out for the anniversary and I scraped the sauce off of it.  I don't eat fat and if I use any it is olive oil but very, very little.  I will roast stuff in the oven with cooking spray.  I have been eating the veggies like mad and even added fresh fruit that I don't necessarily like.  I just wanted to cry during the meeting but my friend Beverly told me she had that happen for about 4 weeks and then all of a sudden started losing.  I certainly hope that happens because if I go next week and that damn scale goes up again I'm going to quit eating!!!!!  Just kidding.  It is frustrating but I won't give up!