The most important question I was trying to answer with the survey was this: "When is a baby most likely to spontaneously show up?" The graph above shows the percentages, based on 1883 responses. 1418 of the deliveries were as a result of labor occuring spontaneously. The chart only shows these deliveries, which is why the percentages do not add up to 100%, because only 75% of participants had spontaneous (non-induced) labor.
The statistics right now are as follows:
| Day | Week | Births | Running Total | Percent | Running Total % |
|---|---|---|---|---|---|
| 245 | 35W,0D | 2 | 2 | 0.1 % | 0.1 % |
| 246 | 35W,1D | 2 | 4 | 0.1 % | 0.2 % |
| 247 | 35W,2D | 1 | 5 | 0.1 % | 0.3 % |
| 248 | 35W,3D | 5 | 10 | 0.3 % | 0.5 % |
| 249 | 35W,4D | 2 | 12 | 0.1 % | 0.6 % |
| 250 | 35W,5D | 5 | 17 | 0.3 % | 0.9 % |
| 251 | 35W,6D | 3 | 20 | 0.2 % | 1.1 % |
| 252 | 36W,0D | 5 | 25 | 0.3 % | 1.3 % |
| 253 | 36W,1D | 7 | 32 | 0.4 % | 1.7 % |
| 254 | 36W,2D | 9 | 41 | 0.5 % | 2.2 % |
| 255 | 36W,3D | 7 | 48 | 0.4 % | 2.5 % |
| 256 | 36W,4D | 3 | 51 | 0.2 % | 2.7 % |
| 257 | 36W,5D | 6 | 57 | 0.3 % | 3 % |
| 258 | 36W,6D | 9 | 66 | 0.5 % | 3.5 % |
| 259 | 37W,0D | 7 | 73 | 0.4 % | 3.9 % |
| 260 | 37W,1D | 11 | 84 | 0.6 % | 4.5 % |
| 261 | 37W,2D | 10 | 94 | 0.5 % | 5 % |
| 262 | 37W,3D | 13 | 107 | 0.7 % | 5.7 % |
| 263 | 37W,4D | 16 | 123 | 0.8 % | 6.5 % |
| 264 | 37W,5D | 16 | 139 | 0.8 % | 7.4 % |
| 265 | 37W,6D | 23 | 162 | 1.2 % | 8.6 % |
| 266 | 38W,0D | 15 | 177 | 0.8 % | 9.4 % |
| 267 | 38W,1D | 17 | 194 | 0.9 % | 10.3 % |
| 268 | 38W,2D | 10 | 204 | 0.5 % | 10.8 % |
| 269 | 38W,3D | 33 | 237 | 1.8 % | 12.6 % |
| 270 | 38W,4D | 36 | 273 | 1.9 % | 14.5 % |
| 271 | 38W,5D | 34 | 307 | 1.8 % | 16.3 % |
| 272 | 38W,6D | 38 | 345 | 2 % | 18.3 % |
| 273 | 39W,0D | 42 | 387 | 2.2 % | 20.6 % |
| 274 | 39W,1D | 38 | 425 | 2 % | 22.6 % |
| 275 | 39W,2D | 43 | 468 | 2.3 % | 24.9 % |
| 276 | 39W,3D | 53 | 521 | 2.8 % | 27.7 % |
| 277 | 39W,4D | 57 | 578 | 3 % | 30.7 % |
| 278 | 39W,5D | 64 | 642 | 3.4 % | 34.1 % |
| 279 | 39W,6D | 80 | 722 | 4.2 % | 38.3 % |
| 280 | 40W,0D | 80 | 802 | 4.2 % | 42.6 % |
| 281 | 40W,1D | 79 | 881 | 4.2 % | 46.8 % |
| 282 | 40W,2D | 55 | 936 | 2.9 % | 49.7 % |
| 283 | 40W,3D | 64 | 1000 | 3.4 % | 53.1 % |
| 284 | 40W,4D | 60 | 1060 | 3.2 % | 56.3 % |
| 285 | 40W,5D | 49 | 1109 | 2.6 % | 58.9 % |
| 286 | 40W,6D | 52 | 1161 | 2.8 % | 61.7 % |
| 287 | 41W,0D | 64 | 1225 | 3.4 % | 65.1 % |
| 288 | 41W,1D | 38 | 1263 | 2 % | 67.1 % |
| 289 | 41W,2D | 30 | 1293 | 1.6 % | 68.7 % |
| 290 | 41W,3D | 28 | 1321 | 1.5 % | 70.2 % |
| 291 | 41W,4D | 29 | 1350 | 1.5 % | 71.7 % |
| 292 | 41W,5D | 19 | 1369 | 1 % | 72.7 % |
| 293 | 41W,6D | 15 | 1384 | 0.8 % | 73.5 % |
| 294 | 42W,0D | 14 | 1398 | 0.7 % | 74.2 % |
| 295 | 42W,1D | 8 | 1406 | 0.4 % | 74.7 % |
| 296 | 42W,2D | 5 | 1411 | 0.3 % | 74.9 % |
| 297 | 42W,3D | 2 | 1413 | 0.1 % | 75 % |
| 298 | 42W,4D | 1 | 1414 | 0.1 % | 75.1 % |
| 299 | 42W,5D | 2 | 1416 | 0.1 % | 75.2 % |
| 300 | 42W,6D | 0 | 1416 | 0 % | 75.2 % |
| 301 | 43W,0D | 2 | 1418 | 0.1 % | 75.3 % |