Update!! Weird bathroom symptoms? 12 dpo- possible tmi

Today I had a glob of CM with some pink blood in it and feeling cramps like AF is here.

That happened while I was trying to use the bathroom to go number two - I felt constipated and had a hard bowel movement. Then an hour later ran to the bathroom with diarrhea and loud gas. AF is due Saturday - I’m 12 DPO - hcg test today was a BFN

Anyone have symptoms like this before a BFP?

(Sorry if it’s tmi!!!)

Update - AF REARED HER UGLY SELF TODAY - I’m officially not pregnant this month. Looks like the bathroom issues I was having was my body getting ready for AF to arrive.