weight loss during pregnacy

Do you still lose wight during a pregnacy?

sometimes.

You shouldn't expect to.  I got pregnant 9 months out from RNY, and my weightloss stopped and never started again.  I never hit my goal, and now I'm pregnant again.  That's why so many surgeons tell you to wait to get pregnant.  You should make sure you are done losing weight before you get pregnant.

I got pregnant just before my 3rd surgiversary and lost 15 pounds in my first trimester. I gained it back in the second and right now I am only 2 pounds above my pre-pregnancy weight.

So the short answer - you can. The long answer it depends lol

I lost an additional 17lbs while pregnant for the first 14-15 weeks. since then I have maintained sready. I am waiting for the weight gain to start.

I've lost 5 pounds the first 17 weeks.  Now I think I'm starting to maintain/gain but it's hard to tell if it's truly that or just a normal fluctuation.