Acne on the face does not necessarily mean that you are pregnant. It is mostly caused by Staphylococcus aureus infection, which causes redness and swelling on the surface of the skin, and some people may also experience pus and pain, and it is recommended that you go to a dermatologist to get appropriate treatment in a timely manner. In case of clinical pregnancy, the increase of estrogen and progesterone will lead to skin discoloration, such as butterfly spots, and brown and more obvious marks on the face. Most of the pigmentation will fade after pregnancy termination, and it is recommended to take oral vitamins for pigmentation, and less sun exposure will gradually fade the pigmentation.