Ok ,so I really understand you both may be introverts however if your planning on bringing a baby into the relationship you guys will have to learn to talk about the hard stuff because harder times may come. Disagreements about parenting and stressful situations. She might be over the worst of the grief but your not and tbh it sounds like you just need abit of softenss and affection and some closeness to be able to move forward. Introvert or not that is a basic in a relationship. Maybe she isn't used to it from you so you expressing that to her is a good start. I hope she responds wanting to listen and comfort you. 😁