5 Months PP

Question regarding any personal experience with fertility after giving birth. I just had my second baby in April of 2022, I was on the pill after my initial 6 week PP checkup. But in recent weeks, I found myself not taking the pill at all.

According to what I've looked up, I could've potentially just had sex with my partner during my "fertile" window because I haven't taken the pill in 2 weeks.

Have any of you had experience with this? What is the likelihood I could experience another pregnancy since I didn't use protection? I've always heard you're way more fertile the first 12 months after having a baby.