Gross Question

So this is definitely TMI but I have no one else to ask. Apologies in advance. I’m due to start my period in 5 days and have been anxiously plugging through my TWW. My husband and I just had sex and when I peed after there were chunks of pink! You know how sometimes after you BD a bit of semen comes out when you pee? That’s what it was but light pink. What the heck does this mean? Anyone have any ideas? I’m like is this implantation? My period? I‘lol take any and all ideas!