just a question, is there a time when pregnant soldiers don't have to where boots anymore, or is that only active army?

The last (and only) pregnant soldier I had to deal with had it stated in her profile that she had the option to wear soft shoes or boots for the duration of her pregnancy (She continued wearing boots until month 6).

She can start wearing soft shoes whenever she wants. When I was pregnant I wore boots until I couldn't bend over to put them on anymore ( about 7 months along)