Hello Friend, Good that you are seeking a help here. It's quite obvious for you know and check everything your eat, drink, apply, use into your body, because you are getting into the motherhood phase and worry about health of baby. Appreciate it.
It's a simple common sense. Skin is an organ which absorbs thing without going through proper digestion process. Can you confidently eat any of such creams through mouth? Why, it has some chemicals and you know it will harm your body, but then why you apply to skin? Advice you to move into natural or homemade powder or past made by natural ingredients. Then you will not carry such fear throughout your pregnancy.
Feel free to reach out to me online or through Lybrate app to understand what are other alternatives you can follow not just for the skin, but as generally wellness. I am also an ayurveda wellness counselor.