How can a therapist help?

I have been looking into therapy for a while. I need to learn how to deal with my problems and be happy again. We got pregnant 4 1/2 years ago but we aren't ready sink had the abortion pill. I was never happy about it but I knew it was the best decision at the time. We have been ttc since December 2014, so a little over a year. My doctor said the abortion has no effect but I feel like I'm being punished. I would love to hear your opinions or insight on of therapy is the right thing. And if they can even help with my situation. Thank you in advance!