At what time of my pregnancy should I ask for WFH?

Hope

I just got tested positive and it is very early (I'm 14 DPO).

I have to travel 1 hour to reach my workplace and 1.5 hours to get back home. And although I take the office cab, the ride is not smooth with the bad roads in my route.

At what point of time in my pregnancy should I be asking for work from home?

I'm 35 this September.