The signs and symptoms of acute inflammation: Redness; Swelling; Heat; Pain; Loss of function; All the above signs may be observed in specific instances, but no single sign must, as a matter of course, be present. These are the original, or cardinal signs of inflammation. Functio laesa is an apocryphal notion, as it is not unique to inflammation and is a characteristic of many disease states. *Full article available from Wikipedia
This information is just provided to give you piece of mind, as it is best to avoid the topical-use of retinol-containing products during pregnancy. It is the oral-administration of retinol that has been proven to cause severe birth defects. Please let us know what the company and your doctor says!
During pregnancy elevated hormone levels can bring a variety of skin changes, which makes acne and pregnancy a common complaint. Acne can be treated by a dermatologist in non-pregnant women through prescription drugs such as Accutane, Retin-A, and Tetracycline. However, use of these drugs is discouraged by pregnant women or women trying to conceive and should be thoroughly discussed with your health care provider and dermatologist.