my boyfriend and I were having sex and he came but he still kept going in. He had a condom on and the condoms he bought were a weird pleasure pack so there was lube on it. afterwards he said that he wasn’t sure if what was outside the condom was lube or his nut (since he came but still kept going in). so now I don’t know if I should play it safe and take a plan b? i could use some advice or a second opinion