Help pleaseeeee

so me and my husband have just started ttc. Well I have a few friends that swear up and down I’m already pregnant, because of how I’ve been feeling. I took a clear blue digital and it said not pregnant. But this app says I should start my period until the 17th. Is there a test that would be more accurate around this time?? And if I’m not I need tips on ttc!! Pic of my babes for attention💙💙