Is No symptoms okay??


So I just found out I’m pregnant last week ... I’m now 4 weeks but don’t really have any symptoms... just super tired really 🤨 I had a miscarriage 3 years ago and I remember with that pregnancy I was soooooo sick/ nauseous... is this normal ? Ima scared this pregnancy will also end in a miscarriage.... have any of you had no symptoms or they kicked in later ?