Slow labour or not ????

Stacey
can anyone tell me what slow labour is like n how long you was like it for? And how many weeks was u ?(as my baby's movements have reduced since yesterday ,been getting mucus plug for last week in bits, and today got checked out from hospital and was told getting tightenings but just feels like achy feelings in back but my cervix is closed apartly...... They have sent me home to keep eye on things worried as I'm only 34 weeks 5 days previous premie at 35 weeks