Impatience
Hermione snapped. "I don't see why you'd want to know, considering you practically disowned me. Besides, you still aren't ready to be a mother, but that never stopped you, did it?"
Jane Granger stopped pacing. She was about to reply when Severus picked Charlotte up, settled her on his lap, and calmly spoke.
"It might interest you to know that Hermione didn't plan to marry just yet. You have probably realized she is a bright young witch," here the Grangers cringed, "and would have preferred to direct her talents towards some occupation far removed from that of mother and housewife."
Thanks to Sylvia Snape for the 'you aren't ready to be a mother' line. I just had to add it in there.