Check the safety of medications and supplements
Here are some websites:
https://www.cdc.gov/pregnancy/meds/treatingfortwo/index.html
https://www.fda.gov/ForConsumers/ByAudience/ForWomen/WomensHealthTopics/ucm117976.htm
OTIS: https://mothertobaby.org
If you are taking medications, please consider registering at this website and being a part of research into Medications and Pregnancy:
https://www.fda.gov/ScienceResearch/SpecialTopics/WomensHealthResearch/ucm251314.htm