Help what should I do

Tmm is going to be a week that I had sex and took plan B. I took plan B because the condom had broken and he ejaculated a few minutes after. It all landed on his hand and on my stomach but I was worried that some of it was inside of me so that’s why I took the plan B. He tells me that no he didn’t ejaculate inside of me but I’m still worried. However, I know that with plan B, I start spotting but I haven’t yet and I’m worried now🥺