Contractions....

Courtney • Courtney Ann. 21. 5`7. Brown Hair & Blue Eyes. Married to an amazing man since March 1st, 2014. God is #1!
Hey Mommy's out there, I have a question. Friday I will be 32 weeks pregnant. At my last doct appt my OB asked if I had been experiencing any contractions yet. Of course I told her no because I haven't really experienced anything yet, but at the same time this is my first pregnancy and I'm not to sure what to look for. How do I know I'm having a contraction? What does it feel like? When should I be concerned about them? Help!