Should I be worried?

I’m almost 7 weeks pregnant and all of my symptoms are gone. I was extremely fatigue, had light cramping, I slightly had upset stomach here and there l, kinda tender nipples and now everything is gone. I feel like my normal self when I’m not pregnant. I don’t have an ultrasound till I’m 10 weeks. I’m freaking out and husband is no help and just gets mad and tells me to stop worrying.