Third is the lunge pulse- same thing here, just pulse. From the pulse, go into regular lunges. With lunges, also keep your knee behind your toes and bring that back leg as close to the ground. Whichever leg you are using more to push yourself up is the leg you will feel it most in so try to keep it even between them both. Don't forget to squeeze your glutes on the way up in both the squats and lunges! Do 10 reps of 4-5 sets (or as many sets as you can) for each move. :)
*Disclaimer: If you are pregnant and/or have not done much exercise before, make sure you check with your health provider before doing any of these exercises.