Personal question

I went to the toilet before for a quick pee and noticed I had quite a bit of lotion cm. I also had a small bowl movement, when I wiped I saw a speck of pink...I wiped front to back so how do I know where the blood came from? My vagina or my ass? Has anyone had this before? 😄

UPDATE

Just to add, I finished period on the 12th..I track ovulation by my CM and I feel I ovulated early as in a few days after AF. I've been cramping for the last week, AF is due in 8 days time

My boobs have felt a little different since yesterday and I'm cramping alot now top. I took a test days ago and didn't see anything on the test.