Semen emission while taking a dump

Hey fapstronauts,I had something really weird happen to me today. I was taking a dump and i noticed drops of semen trickle out of my penis...Yes it was semen and not pre cum.
I was not at all aroused and my penis was completely flaccid. I've been abstaining from PMO for way over a week now and yesterday i stumbled upon a video of a woman extracting semen from a dog...That weirdly turned me on...I didn't consider it a relapse though,despite getting a semi erection from it (thats saying a lot cause I have PIED)..
Also I'm on an intermittent fast and I had to struggle to get the poop outta my pipes (I'm sorry I know it sounds disgusting) I noticed semen only after i struggled to get everything out for a few minutes...The semen wasn't much...just a few tiny drops' worth..Is this normal? Should I consider this a relapse?(or me accidentally stumbling upon the semen extraction video?) Is the 'semen trickling out incident' a consequence of me watching the video previously? Or was it because I put too much pressure on my pipes?