something thaat might help is writing a letter( and even though its hard) to your unborn baby, about everything u wanted for him or her and just let it all out to the baby and then keep it somewhere and whenever your down or feeling sad just remember, you had the best intentions ahead.
i have been thru the same thing im 15 now(Also might be expecting) but i was just 13 and in 7th grade when i learned i was pregnant, i wanted to keep my baby but shortly after learning about the pregnancy, I had a miscarriage and its one of the hardest things ever.
i hope u start feeling better soon hun, things will soon start to look up, I Promise