How many living biological children do you have from your previous marriage? (Sons)

How many children altogether (biological and other) live with you in your household?

Do you live with any non biological children (your partner’s children, foster children, etc.)?

When was your wife/partner last pregnant? (Never)

Do any of your biological child/children live in your household?

Does your current partner are the biological father of your biological child (ren) who living with you?

Do you have biological children younger than 18 that do not live with you?

How many [biological children younger than 18 that do not live with you]?

When did your wife/partner last become pregnant? (YEAR)

When did your wife/partner last become pregnant? (MONTH)