Pregnancy rash?

Martha

OMG PLEASE SOMEONE TELL ME WHAT IS THIS, I’ve tried to search it up but nothing really comes out and like I just don’t know where it’s coming from all I know is that it’s so itchy lol, I went to my ob and they just said that they wouldn’t know tbh so like it’s still left me wondering what Can this be and LIKE ASLO WHAT CAN I PUT ON IT BC IT WONT STOP ITCHING AND IT KEEPS SPREADING SO LIKE please please someone who can relate help a girl out 🤗🤗🥲🥰🥰