Postponing pregnancy due to lack of space?

Pffff, choices, choices... my entire house has been screaming for this for a year now. I want to get pregnant with a second one. For our first pregnancy, we were both convinced we only wanted one child. But even during my pregnancy, I realized I wouldn't want to go through that again if we stuck to that choice. After our daughter was born, I felt so good that I thought; I could somehow give the same amount of love to 20 more children! So the desire for a second came quickly. But... a house with only 2 bedrooms. And then what? Put the house on the market, but we know how it goes these days; we've been listed for almost a year. Delay the pregnancy or have the little one sleep in our room (quite spacious) and maybe section it off a bit with IKEA sliding curtains or divide our bedroom into two mini-rooms where everything a child needs fits but there's little play space left. What would you do? I'd love to hear your opinions!