Cramping lately

Angeli • 32 year old first time mom, married, therapist/social worker
I have been cramping more lately, mostly lower cramps.  It's happening a lot and making me nervous.  The last time I went in and mentioned it, the doctor said its normal.  It's just happening more and I'm paranoid.  I'm 16 weeks.  This is my first pregnancy.  I don't think I've felt movement yet. BWhat do you think?