Scared to test

So just got married and went on a week honeymoon cruise, got back yesterday.. my mom said she had a omen? Said for me to take care of myself cause I was pregnant, like did she know my period is now 4 days late, boobs are sensitive at times and I've been nauseated since wedding day .. I was thinking stress but I've been totally happy with no stress. Really hope this may be it but so scared to test . So I'm just gonna wait it out a couple of weeks then if no af shows then I might break down and test.... 1 yr actively ttc