(PLEASE DELETE IF NOT ALLOWED) (posted elsewhere but no answer)

I need help because I don't know where to turn to and my friend is so depressed about this matter. My friend (22F) has a little space (aged between 6-8 years old) she found out she was pregnant in January and is due in September. Recently a mutual party of ours snapped at my friend after mentioning she had a little space and was pregnant. He (23M) told my friend that she couldn't have a LS while having a child. That it was unnatural and she would ruin her child's life considering she had a child like mind sometimes too. My friend doesn't regress often due to trauma caused by regressing but her current partner has been helping her get back into being comfortable going into LS because they know it could help her mentally. She now feels like she isn't allowed to regress because she's gonna be a mother and has become depressed due to not wanting to ruin her child's life. Is there anything I can say to her to reassure her that she can be a mother and have a little space? I don't want her to close back up after all the effort her partner and her have put into getting her back where she was comfortable enough to regress again. Please help!

Edit: Wanted to add this. The mutual has only known my little friend for about a year. I've known him for 10 we grew up together and I spent a lot of time with him. I didn't see anything in his life that suggested he had problems at home and he was the "served with a silver platter" kinda kid. Basically lives off his family's money. That definitely doesn't mean that there couldn't have been issues just none that I ever saw. I don't know how he views littles, bdsm or even women in general. I do know that he kept attacking my friend hours after we had dropped the conversation up until she had to block him.