should i take 2 plan bs a week apart??

around july 5, i took a plan b two days after having unprotected sex. around 2 days ago, i had unprotected sex again and im wondering if i should take a plan b again?? i know it really messes with your hormones and can mess up your period cycle for a while, but i really don’t wanna get pregnant. he pulled out both times, but im still worried about the precum. also my last period cycle started on june 28 and flo app says i start ovulating tomorrow. please help, ty!!