Has anyone's baby dropped blow 0.4 percentile. My little one is now 18 weeks and only 8lb 13oz, born at 3lb 10oz at 34+5. Just wondering if anyone else been in this situation and when do babies catch up? Was born between 2nd and 0.4 percentile so dropped down percentiles but always been very low. Any advice would be appreciated feel like only person in this situation? Thanks x