TMI- sorry not sorry.. help

Okay so here goes nothing. June 14,15,16- pinkish after restroom breaks. 18th late at night bright blood but only enough to make me go wipe- thought it was af- pinkish again the next morn and still to today. I'm currently 2 days late and suppose to be 16 dpo. Could I be pregnant- I'm 41 so I'm not sure if I can test later (maybe Hcg just isn't high enough) or if I should throw in the towel being I'm still spotting like this for a week🤞🏻🤞🏻 I really want a 4th and final! To add- my cat has been super clingy the last couple of days.. could she know something is up before I do???