Implantation bleeding or period? TTC

Ok so I don’t have a picture rn but this morning while showering, I checked my cm & there was very little brownish spotting . I’ve been waiting for my period to come (irregular) but also ttc. My boobs have been sore for a week and I’ve been breaking out on my face like crazy. Today is the first day I saw little spotting, but only sometimes when I wipe it feels almost a little gooey with a string of reddish pink in it.

Could it be implantation bleeding or period?