just over 4 weeks and I barely feel pregnant?!

Does anyone else have this problem? I worry that I'm not even pregnant anymore and but still no period or anything. Just slightly sore boobs, tired, little bloated and always eating.. makes me nervous. I workout regularly and I know that helps you not get so nauseous.Haven't been to the doctor yet, in the process of it now! Just wondering if anyone has minimum pregnancy symptoms in the early stages?