Scared, first pregnancy

Hi ladies. So just yesterday I found out that I am pregnant. According to the app I’m around 5-6weeks. I still haven’t gone to the doctors but planning on going someday this week. I am a home health nurse so my job keeps me on my feet and my patient is a total care which I have to move/ reposition and he/she is on the bigger side. I’m scared that I can loose my baby doing physical work like that:/ we waited 4 years for this little miracle. Did anyone go through this? How did you handle it? any advice would be appreciated! Thank you in advance.