How do you feel about choosing gender of baby during ivf treatment?

Honestly, if I went through the whole IVF process, I'd be sooo grateful with any gender and pray that baby will be healthy. I imagine IVF to be such an emotional experience, choosing a gender will be the last thing on my mind. On the flipside, I wouldn't judge if someone wanted to choose their baby's gender. I mean, IVF is already a scientific process, if someone had a gender preference and wanted, for example, a little girl -- I don't see why not. Recently supermodel Chrissy Teigen and her husband the singer John Legend opened up about problems conceiving, going through IVF and revealed that they chose to have a little girl. Some supported their decision but alot were negative stating religious, moral etc etc reasons. At the end of the day, it's the parents' decision and nothing to make a fuss about.