Heartbeat but no growth

Ra

I’m posting something similar in hopes more will see it, but I went in for an us last week and baby had no heartbeat at 6 weeks 1 day, we went back yesterday (5 days later) and baby had a heartbeat of 111 but had not grown at all. Baby was still measuring only 6 weeks 1 day. I am having terrible nausea and have been for the past week. I have had no cramping or bleeding, but my doctor said it could be a lot of things. She wants to check again in a week. I would love to hear your stories good or bad, I just want some answers.