I usually put the heating pad within my reach (so I can put the pups back between pups and put them back when the next pups starts coming, but they're concentrating on having another puppy and will step on the puppy so not in their reach.
Look at this website so you won't be as nervous when she begins whelping and you know what is normal.
http://www.malteseluv.com/Whelping1.html
Swing down - I'll try to explain - Lay the pup on its stomach flat on your hand facing your fingertips - Place your other hand on top and hold securely (they can be slippery). Raise the pup over your head keeping it horizontal belly facing the ground (not upright which will only drain into the lungs). Swing the pup down through your spread legs ending up with the pup upside down. I usually do this twice and it is suppose to drain any liquid that might be in the lungs - then I suction mouth and then nose again.