I was once tagged as a "teen mom" and it brought me much shame and embarassment as I was always seen as the responsible one. But through it all, although I had hard days, I could never see getting pregnant so young as a mistake. I wasn't proud of it, but it wasn't a mistake. I've always felt that God blessing me with my daughter saved my life. Before I got pregnant I was on the road to destruction - I didn't plan on going to university, I was smoking weed, drinking and hanging with a boy/man that was bad news. But that was 8 years ago. Since then, I had graduated from university, I work at a well paying job, recently got married and bought a house and best of all had twins (even though I SWORE I wasn't going to have anymore children).
I guess the point is that don't let anyone make you feel ashamed or embarrassed about your "mistakes". They're merely lessons learned... brush yourself off, make a plan, and continue to walk with your head held high until you reach your goals. Because with God and people who truly love you, ALL THINGS ARE POSSIBLE :)
God Bless