Emotional Roller Coaster

Hello Ladies,
I am in the tail end of First trimester and seem to have lost control over my emotions recently. My husband is in India these days due to a family emergency and until yesterday every time i thought about him/us, it was a pleasant, adorable feeling of parenthood. I happened to read pregnancy related book yesterday and was my first real exposure to what all will occur in the next few months, and the hard process of labor etc.. And since then i have been feeling so anti-social (for the lack of a better word) and dont want to call/talk to my husband. He has always been such a supportive partner but for some reason my mind is so overshadowed by what i read yesterday and my thoughts lead me to think that i have a tough time ahead and doubtful if he will be able to help. The thoughts of loneliness and "will i be able to manage it all" are overwhelming. I have heard that pregnancy hormones make you emotional (and needy ?) at times... need your advise ladies... is this just a phase ? How can i transform my thought process back to positivity!!!! I am just too scared i think :drowning