Who is right ?

So my fiancé has two prev kids we have a toddler & I am preg now . We both agreed we only want two together. So since I will most likely have a second csec he says to tie my tubes which I don’t agree with I’ve heard bad experiences like after pain ? I might be wrong . Well I tell him you get a vacectomy and he says let’s both do it but I feel he will back out if I get mine first ..... plus if we decide on another one day it would be easier for him to get reversed ! I feel my body has and will go through enough it’s his turn ! Am I wrong ?