Hi Nicolas! Welcome to OB!
Without pics to look at, it's a tough call. However, if it's really outgrown it's pot, and sitting in decomposed medium, now would be a good time to repot....before it blooms. I'd be very careful working around the spikes, but it shouldn't be a hard thing to do right now.
Generally they do not like to be disturbed while in a "bloom" cycle. However, I've read that the perfect time to repot is when new growth (spikes) are evident.
