[Dynseli]

If you want to increase relaxin, use lactogogues (hops, blessed thistle, fennel, asparagus root), or fenugreek during the luteal phase. At other times, it may not increase relaxin. There's no need for anything else. Extending the luteal phase, means more relaxin and progesterone, which are known to widen hips. Using the above herbs may help extend or skip a cycle, if you want more relaxin, but try not to skip two in a row.