K.C.
Hi E.! Congratulations on your new baby and being 5 lbs. away from you pre-pregnancy weight already. I am an aerobics and yoga instructor. It is not a good idea to strength train just yet. I know you feel great but your muscles are what you are worried about. It takes those muscles up to 6 weeks to get back to normal. Straining them could cause tearing and permanent damage. Even yoga is too hard on those muscles. Eating right and breastfeeding will probably drop the last 5 lbs. before you know. Going for walks however is ok. As long as you don't get over tired as you are walking. Walking at a semi-brisk to brisk pace everyday will help tremendously. Good luck!