Anyone else ever gone through this?

Ka

Last night I was having very mild contractions every 3-6 minutes for at least 4 hours. They came back this morning after I slept. I can feel pretty intense tightening but they were either painless or very mild pain. I went into l&d last night anyway as I was told to come in when contractions are 5 minutes apart for at least an hour. My cervix was only 1 cm so they sent me home and told me to come in when the contractions got kore painful. I’m just wondering if anyone else had this happen and how long you had the mild contractions before they turned into real labor. The nurse I had basically told me it could be hours or days. I hate not having a better idea of what to expect! I also had my bloody show on Saturday.