2nd Trimester Cramping

Hi ladies! I am currently 14 weeks and 5 days along and this past weekend I had gone to the ER and they found a small bleed behind my placenta. The cramping had subsided. The baby seems healthy according to the ultrasound, but I had my follow up appointment a couple days ago and they did a pap smear. I had initial cramping again, which is normal for me when I have that procedure done. But the discomfort had went away through the night and yesterday I felt great all day. Now this morning I am cramping really bad, but no bleeding thankfully... Could this be normal? Should I call my doctor or just got to the ER? Help!