As parents we can be more understanding than you may think. This sounds like one baby that is truly meant to be...a gift from God. The baby may give your dad something else to think about, and maybe as God is taking one from you, he's blessed you with another. Let your parents know about the baby, it may be the one shining light in this whole thing. It will give your dad the power to fight harder so that he can see his grandchild and be there for you. Don't let him miss out on this, it may just be what your family needs right now. I wish you all the best...prayers and hugs to all of you!
A child is a blessing no matter the circumstance. While it maybe a shock to everyone, its here for a reason. Enjoy this moment. Being pregnant is one crazy ride but well worth it. 11w 5d pregnant with twins. Good luck. Prayers to your dad. May he recover.