I decided a few days ago to fast as a trial and also to makeup one from last time, alhamdulillah I fasted for a day on the weekend with no issue at all. I've checked with the health professionals and have been advised to monitor baby movements - I've got an active baby already mashaAllah but if the baby slows down at any point then that is my signal to break the fast. I know for sure I won't fast the whole month as I work full time so I'm having a trial fast today at work and if that goes to plan then inshaAllah I can do one day on then one day off. If not, I'll just fast the weekends where I can nap during the day.
I definitely still agree with what I wrote before - fasting for the sake of it is just plain silly when you're pregnant. You really need to ensure that the risks are minimal for your particular stage, for example me as I will be finishing fasting just before the 3rd trimester, it is actually the easiest time to fast as the baby is not growing as rapidly as earlier on and you're not experiencing the massive changes of later pregnancy.
InshaAllah khair for all of us though.