yeah I've been experiencing this, mostly in month two and it's been like 80% of the time I go for number twos.
I was really regular during month one, like clock work and with no effort at all, no need to even push... then when I got home I started taking nurofen plus in the mornings. I read that it can cause constipation so I've been blaming that for the irregularity and the need to push well that and I'm not drinking as much as I was during month one because every day that I drink a lot I'll be almost an hour into dilation and really need to pee, I refuse to stop and start so if it gets too much I just stop early. And I don't drink anything for two hours before only straight after I finish a session.
I noticed that there is more blood if I poop in the mornings than the afternoons and at first I thought it was from the stitch site around the opening but now I'm sure it comes from inside. I thought it must just be a stitch inside or just one of those little lattice holes, those little dots of scab that appear may of popped off from the pressure.
I tried taking one of those pills that soften everything but it just got in the way of dilating, I'd feel the need to poop too often but nothing would move blah! I've been thinking of trying them again as things are getting a bit ouchies when I do go... even though there is less blood now. I figured it would return to normal after I stop needing to take any painkillers.
P.s So much better dilating on an empty bowel xP