It's great that you're checking before using any product during early pregnancy.

At 40 days pregnant, it's very important to be cautious about any medications, supplements, or products you consider using. Some substances can affect the developing embryo, especially in the first trimester.

Here’s what you should do:

• Avoid starting any new medication or supplement without consulting your obstetrician or a specialist in maternal-fetal medicine.
• Share the exact name and ingredients of the product with your doctor to ensure it is safe for use during pregnancy.
• If the product is a dietary supplement or herbal remedy, be especially cautious, as not all are tested for safety in pregnancy.

Recommendation: Please consult your obstetrician before purchasing or using the product to ensure the safety of you and your baby. If you experience any unusual symptoms, seek medical attention promptly.