First birth started as period pains then when got into established felt like I was being squeezed by a giant snake around my middle affecting my stomach and back.
Second birth different, started feeling very achy and then tightening pains almost straight away. They built with intensity and came in waves, 2 or 3 really hard ones then one excruitating one at the peak of things, you could feel the pain building up.
Wish I had been like my mum, for some inexplicable reason she couldn't feel contractions at all (the drs didn't believe her, but that was a long time ago) so she didn't even know when to push.!!!
Sorry couldn't be more specific but 2nd was natural and fast (6 hours) and was like being hit by a bus as there was no build up, so my memories are not great.
x