does any of this mean that my husband's benefits will get smaller because I'm qualified and taking some of that for myself?
Your husband's retirement benefit will not decrease.
I am glad to know, do you know what is the estimated benefit for my spouse if he retires at full retirement age?
ask them what their benefit would be if it started at their full or normal retirement age, Divide this amount in half and round down to the nearest dollar .This is your estimated spouse 's benefit if you retire at full retirement age