Terrified

I had a miscarriage on 10/15 and bled for 2 weeks... Now I've been spotting on and off for the past couple days and started getting dizzy well took a test and it's positive for 1-2 weeks along.... I'm happy in a way... And I know that sounds horrible but all I can do is think is something gonna be wrong with this baby... What if the test is lying.... What if my husband isn't happy.... We got married a week after the miscarriage and we've been having sex But we've been using protection ... But I know one time it broke,... So maybe that was just a. Sign it's supposed to happen... I'm literally so confused on how to think or feel that idk what to do or if I should even tell him incase something goes wrong I don't want him to hurt again ... Advice??