Confused 🤔

Tarae

Ok so I’m 6 weeks 6 days and I just don’t understand!! I have three children and each 1st trimester was HELL ! I was bed ridden even hospitalized with one!! This pregnancy I’m a little nauseous here and there , headaches but nothing else ! I don’t get a ultrasound until October 10th . Should I be concerned?? Has this happened to anyone else?