Inside button navpush not working

Ionic Framework ionic-v3
1 
<ion-item *ngFor="let hh of householdList" detail-push navPush="EditHouseholdPage" [navParams]="{ownerId: hh.id}">
			<h2>{{ hh.q7 }}</h2>
			<h3>{{ hh.q8 }}</h3>
			<button ion-button outline item-end icon-left navPush="AddChildPage">
				<ion-icon name="add"></ion-icon> Child
			</button>
		</ion-item>

I’m clicked inside button after navigate AddChildPage. It is correct, but same time navigate EditHouseholdPage.
Why same time navigate EditHouseholdPage, How to solve this problem?