Sorta worries

I know I shouldn't worry but I'm almost 8 weeks and my breasts don't feel as sore today. I had a missed miscarriage in December so I am really nervous about this one... :( trying to stay positive and not worry. First scan is in two weeks... I know symptoms can come and go, but last time I miscarriage I had no symptoms. I was completely blindsided. Found out because there was no heartbeat. Baby stopped growing at 9 weeks. Anyone else have some of their symptoms come and go but everything was fine?