I'm freaking out

TMI ..................I'm 2 months postpartum me and my so had sex for the first time after giving birth last night well the condom broke and he came inside of me I had what i think was my period starting the 29th of last month ended around the 6th I'm so freaked out Lastnight got me preg go again what are the odds how fertil are you after baby?! You think for being adults we'd be smarter 😑