
Mine are the same age.
Hate to tell you that won't last as the next set of worming looms, hoping they are not squitty just as they start leaving for new homes, if any are still homeless the worry of finding the right homes in a reasonable time frame.
Vaccinating, Socialising and Training any remaining pups, plus your own then kicks in, and leaves you shattered ;)
Then all the worry of first weeks in new homes then the first 18 months or so (usually 8 months to two years) wondering if you will get that call that the new owners can't cope.
After that you relax a bit until the bombshell that redundancy, marriage break-up bereavement forces Re-homing of 4, 9 etc years old.
Why do we do it we ask ourselves as we look at our latest puppy and start planning which direction we will take our breeding program next, LOL