Dad needs coronary bypass surgery...

My dad has been in the hospital for a day because of chest pains, his heart cath today showed 90% occlusion in 3 or 4 of his coronary arteries. He is scheduled for bypass surgery this week. I am 1,500 miles away and won't be able to be there. I just don't even know what to think. I'm bawling and so upset.

Anyone else been though this? I'm so scared I'm going to lose my dad too soon. I am 16 weeks pregnant and don't want to stress too much but it's hard not to be emotional and stressed over this..