I like the question at the end. It forces Clark to confront some underlying issues with Lois.
It makes sense that Lois is emotional right now. I've never been preguant myself, but I understand it makes you emotional and feel more vulerable than usual. But I still think she has more feelings for Clark than she is willing to acknowledge right now
But I'm glad that Clark was somewhat honest with Lois. I understand she's emotional, but it sounded to me like she was trying to pressure him into saying he has feelings for her that he dosen't right now. I don't think they're anything worse than lying to someone about having feelings for someone that you don't.