I'm thinking of changing my mind about moving in together.
What doubts are you having about moving in together?
I think we're moving too fast.
One common mistake that often derails promising relationship is rushing into them too quickly. Talk to your partner about your doubts and make sure you are both making the right decision.
Oops these doubts probably mean that we're not right for each other... I will dump her.
Well, that's an extreme response, it is probably more likely you're just not ready to move in.