I'm 7 weeks pregnant (five weeks of gestation).  I thought that I had actually gained 2 pounds by week 6, but then I realized that I was really constipated, which is very typical in pregnancy.  Apparently, your GI track slows down so that your body can absorb more nutrients.  I realized this through several days of stool that was so difficult to pass that it created a small fistula/ tear that would bleed with BM's.

Now that I'm more regular through more water, miralax, and senna, I have actually discovered that I'm down 0.3 pounds, which is probably just in the normal weight fluctuation range anyway.

I started clomid myself this month wishing you lots of luck not tat they have things in better working order I am sure you will be pregnant in no time :)

If you're experiencing morning sickness, my advice is to do/eat whatever makes it manageable.  As for when and how you'll gain weight, there is just no way to predict.  Every person, and every pregnancy are so different.  I'm on my third pregnancy and no two have been alike as far as when I gained weight.  With my first, I didn't gain any until 24 weeks and then gained about a pound a week for a total of around 20 lbs.  With my second, I started gaining right away, but then it tapered off and I only gained 18.  With this one, I'm 27 weeks and I've already gained around 20, but it bounces up and down a lot.  Nutritionally, I was not strict with any of the three, so who knows what is responsible for the differences.  Either way, you'll be fine.  You're probably super bloated and uncomfortable right now, normal.  Yes, it is scary to watch the scale go up, but rest assured, that is scary for all women, not just us WLS folks!  Good luck, and congratulations!