Firstly, congratulations on your pregnancy ❤️
I went through a similar experience after a previous loss, and honestly, the anxiety never completely disappeared in the early weeks. What helped me was reminding myself that this pregnancy is a different pregnancy and a different baby.
I tried not to spend too much time Googling symptoms and focused on things I could control, such as taking my supplements, resting well, and staying busy with daily life. Talking openly with my husband also helped whenever my worries became overwhelming.
The waiting period before the first scan can feel incredibly long, but take it one day at a time. Sending lots of positive thoughts and wishing you a smooth and healthy pregnancy.