When Iwas pregnant w.my 2nd istill carried my 1st one around every here & there & baby was fine. Now im pregnant w.my 3rd & carry around my 2nd only when needed tho & bby looks fine too.
My daughter is 18 months and weighs 33lbs she's very fat and heavy and I carry her all the time cause I have too. My.old dr said not to carry heavy things cause it can cause placenta to move or rapture but 22lbs isn't going to do that much. You should be fine :-) if your worried don't carry him so much
I'm 33 weeks and I have two other children 40 lbs each and I carry them often, I've never had a problem cause usually you can continue your daily "exercise" routines, but if it does hurt you and you notice the pattern then maybe it is harming you.