Hi, None of us are qualified to provide medical advice via this site, but we do search out interesting articles to share which can help people find out the answers for themselves.
This article could be a good starting point for your research. https://www.dietdoctor.com/low-carb/pregnancy
There is one paragraph which I think sums up the answer. “I find it ironic that if you tell your doctor that you plan to eat low carb during pregnancy, they’ll say it is unsafe, but if you say you to plan to eat a diet based on fresh vegetables, meat, fish, eggs, dairy, nuts, seeds and a little fruit, they will tell you to stay the course,” she says.