I weighed my self and this past week i gained 4 pounds!!!!!!!!! Holy moly, which makes it 6 for this month!!!!! Omg! And i exercise too!??!!!

well, first of all, the baby is growing more rapidly at this stage, starting to put on weight.  Also, could you be retaining water? have you eating a lot of salty foods lately? 

you'll probably laugh at how anal this is, but I do weekly measurements, including my calves.  today I weighed 1.5 lbs heavier than I did yesterday and my legs felt a bit odd, and sure enough, I measured them and they're a whole inch larger than they were yesterday.  when this happens, I cut out salty foods, for a couple of days, try to drink more water, and my weight goes right back down again. 

I dont eat salty foods and i drink nothing but water, i very seldom drink a glass of milk. I gained sooo much last time, Im just trying to watch it this time but i guess im not doing a good job. I walk 2 miles at least 3 days a week and cycle.

I think a lot of it just has to do with the rapid growth at this stage.  how much have you gained so far this pregnancy?  What kind of things are you eating?  if you're eating a lot of carbs rather than protein and veggies, that could have something to do with it.

I gained 7 lbs up until 16 weeks. At my 20 week chech I has gained another 6 in one month too! I've been a little freaked out about it but everyone just says I'm in normal range and now is the time the baby starts to gain the most weight and anything I gain at this point will be mostly baby weight since I am 21 weeks now. I hope so!!!

Okay, i went to my monthly checkup today and since last month i only gained 2 lbs. Maybe the scale i was using was off!!