What do you do when baby won't nap?

Kaylea • Just a young Midwest momma of three trying to figure things out! 🤷🏼‍♀️😄

My daughter (5mo) is supposed to be asleep but she's just playing in bed. Her 2 hour wake window has now turned into almost 3.5 hrs. 😣 Should I let her stay in bed or pick her up and wait for next nap?