(If a full-term twin pregnancy is approximately 37 weeks, we are almost half-way there.) At this point it is probably misleading to call the movement a "kick," but we know that the each baby will now begin to stretch and flex her limbs. This movement will continue and intensify as the babies grow, until late in the pregnancy when space is at a premium and it is simply difficult to move around in there. Needless to say the arrival of quickening is an exciting moment.