After spending one night sobbing from the pain, my husband encouraged me to do the following
Rest, rest your knees for one day if necessary. Don't stop working out completely but rather moderate your workout, not putting pressure on your knees.
He bought me these which help A LOT, with body aches;
I also applied this ALL THE time on my knees - and massaged them.
And remember to moderate your workout until your knees are better. Mines are all set to run a marathon, but all because i pulled through which made them stronger, and good i took care of them.
I hope this helps a bit- And please don't let anything- ANYTHING discourage to your goal...