Swelling...

Paige
I am 17 weeks with my second child. I had swelling in my first pregnancy but not until my third trimester. This time around I have this feeling in my right leg like there's swelling but there's no swelling actual visible, it just feels like it and it's only in my right leg. BP has been good so far (I see my OB tomorrow to have it checked again) anyone know what this feeling could be?