Teens, especially those from urban areas like New York, often use a variety of slang and informal phrases. Here are some ways a teenager from New York might express that their menstrual bleeding has lessened:
"My flow is chill today."
"I'm spotting less today."
"It's not as heavy today."
Some more conversational ways to express that menstrual bleeding has lessened:
"My period isn't as heavy today."
"I'm not bleeding as much today."
"There's less bleeding today."
"It seems my cycle is lighter today."
"My flow has lessened today."