The early fetal movements are felt in lower abdomen,not in right upper quadrant as you feel.The tubal ligation
was done 2 years back,with no pregnancy
all these days.
So, possibility of pregnancy seems to be less.Still ,if you have delayed periods, had sex in mid cycle, have nausea/vomiting- you can go for pregnancy test for clearing your doubt.
the symptoms you have might come from digestive problems.Any digestive enzyme