I haven't gained weight yet and I'm 20 weeks 3 days. I feel my little one roll on my stomach like pressure from the pushing. I'm further along so for me the pressure of my little one is normally followed by some sort of jab to the stomach or bladder
I know how nerve wracking a pregnancy can be after a loss. I am glad I was able to reassure you a little.
Not everyone gains weight during the first and second trimester. Cramps are common, though they give us panic attacks! You may be feeling the first movements. I usually felt them as a slight almost popcorn popping sensation at first but every woman describes them differently (I'm assuming because every pregnancy, baby, and woman are different). I hope all is well with you and I am wishing you a happy, healthy pregnancy!