Sex 5 weeks postpartum, no condom! (pull out method)

Michelle • Married to love of my life & mother of 2 precious baby girls 💕🙏🏼
Hubby and I had sex last night (tomorrow in 5 weeks PP), he pulled out . But since we weren't planning on having sex and it was spontaneous, we didn't have a condom . So should I go get Plan B ?