Is he trying to get me secretly pregnant?

My husband wanted me off birth control so I stopped using it. He bought condoms for protection but he doesn’t use them. My period ended on cycle day 5 and he finished inside me on cycle day 9 and 10. My cycle length before birth control was 28-30 days I think. And when we ttc our 1st baby I ovulated on days 14,15, and 17 according to opk. How likely is it that I could conceive? He says he needs to get a vasectomy and doesn’t really want more children rn Why is he being reckless? Do you think he does secretly want more children?