Implantation or period?

I've never really known because I've never been pregnant before and I know not all women get it but since I'm trying for a baby I have questions.

So all my period I have had clots and it was super heavy lasts about 5-7 days and is always always on the 8th of every month

But this one is strange it seems more mucus like and I have heard implantation isnt enough to fill a pad but this one did but over the course of an entire day it's only been happening for two days and it's almost all cleared up no clots not deep red blood it's super light almost pink but it has been accompanied by pretty mild cramping which I don't usually get with my normal menstrual cycle

I had sex all through out my fertile window and multiple times and for some reason my feet and hands are swollen which also is very strange to me

-side note-

I have an appointment in about 4 days and I'm definitely going to speak to her about it but I was curious of what opinions or advice I could get before hand maybe a little background knowledge thank you 😊