DS1 i felt little niggles come and go on the sat night as i went to bed, woke up about 2ish and they were still there a little stronger. I'd say in the beginning they were about 10min apart. Things progressed from there but DS still didn't arrive until 12:49am on the Monday.

DS2 it was my waters breaking with no pain whatsoever at about 8ish in the morning. I had a few hours of no pain but i'd say by about 11ish i was beginning to have contactions. I can't remember how far apart they were i'm sorry and i only had about an hour of my own contractions before i was induced anyway because of merconium in my waters.

DD i felt fairly strong (but not painful) tightenings across the front of my lower belly while i was sittng up at about 3am and they would have been about 10min apart. This continued for most of the following day with them gradually getting a little stronger. At about 4ish i had a lay down which seemed to slow them down, i wasn't happy with that so i got up and from then on things really go going.