Still only 4cm!

Rye
Last Friday I was 4cm. Doctor stripped my membranes. She seemed pretty sure that it would put me into labor by the weekend. Sunday we thought it was happening but they sent us home :( appointment today and I'm still only 4cm and nothing's happening! I'm getting very impatient. I went walking today hoping thatll move things along. 
Any other advice!? ^_^