Advice

So I Met This Guy About 6 7 Months Ago At Work And He Been Sackin Me Since The Day He Layed His Eyes On Me. I've Been Rejecting Him And Rejecting Him For Along Time But We Stayed Really Good Friends And One Day I Was On Fb Lookin At His Page And I Started Gettin Butterflies But Not Where You'd Usually Get Them, It Was Like My Heart Was Full Of Flutters. We Are Together And Since We've Been Together He's Helped Me Be A Better Person, He Gives Really Great Advice, He Is Always Complementing Me Which Honestly Boosts My Self-esteem. We Haven't Had Sex Yet And Kissed ONE Time, I Realllllllly Like Him And I'm In It For The Long Run, I Have A Daughter Who He Adores And He Told Me He Wants To Have A Baby. My Daughter Will Be 18 Months In June And I Too Want Another Baby. It'll Be My Second Child And His First. My Question Is How Would I Know That This Is Whats Best For Us, You Know? A Baby?