Can sex kick start a period? And can sex cause implantion bleeding?

Like if seems sex around the time of my period causes spotting. And i wonder if it can like causes it to kick start in like a day or two? And I highly doubt the second question I ask because of the spotting but I’m just generally curious if it can or not because my period is suppose to start in three days and I had spotting yesterday night but it occurred after sex and it was just on the toilet paper not on my underwear or anything. So I’m just trying to get educated and I feel google doesn’t help too much.