No bowel movements in days?

I’m 36 weeks and in my first and second trimester I would have diarrhoea and constipation constantly, but when I reached 28 weeks I would have one bowel movement a day.

For the last 4 days I haven’t been able to produce a bowel movement, but I’m not in pain like I would be with constipation. Is this normal? Nothing has changed with my diet or water intake, I drink as much as possible and eat as much fibre rich foods as possible! I even had a curry a few nights ago and that didn’t even make me need to go 🙄