Congrats, Sabine on the milestone.
Also glad to hear things are going well with the pregnancy (minus the nausea), Veronica.
I was on antibiotics for 10 days to treat a hot tub rash, gross. It made my weight go crazy! I was bouncing up and down about 4 lbs. I did some research on the effects of antibiotics and weight for my blog. It turns out not only is there research showing antibiotics can cause weight gain (since you kill off beneficial gut bacteria, leading to increased fat storage from carbs), but children treated with antibiotics at an early age are much more likely to be overweight. Powerful stuff, those antibiotics.
Yesterday was my last day on them and my weight is back to where I was prior to taking the prescription. My fiance and I are putting more effort into having a primal diet. No more bread for sandwiches, no more flour tortillas, no more buying granola or cereal, no more flour-thickened soups, we threw out all of the leftover snack mixes in the house from recent parties, and aren't buying more beer (so sad). For our DD lunch today we had hearty salads with a little bacon, goat cheese, beets, and hard-boiled egg.