Hello, I would be happy to help you with your question.
What you are experiencing is actually a normal occurrence during
pregnancy. Women can get increased pigmentation in the face, around the nipples, and in the midline on their belly. This is all completely normal and there is really nothing you can do about it. It will fade to some extent after the pregnancy is over. There is no data on whether or not these creams are safe. They are probably safe, but there are no studies to back up their claims of safety or effectiveness. The best thing you can do is to accept that this is normal and expect that it will improve once you are delivered.
I hope that this helps. If you have more questions, please click on "ASK ME A QUESTION" link above to directly ask me a question!