When to change apps to track pregnancy

DOL

My period is late by 1 day and I’ve had loads of positive pregnancy tests. The lines are progressing each time. However, due to having a miscarriage before and having to get my fiancé to go through and delete all the ‘pregnancy’ apps, then switch them over to TTC when I was emotionally ready to open them again, I’m scared to change them over. I used to love reading the daily information about my baby’s development but I somehow feel like I’m tempting fate by doing anything to prepare or getting excited in any way. When do you change them over?