RRL is a "uterine tonic"... it's supposed to encourage the uterine muscles to work properly. Meaning it's perfect for women at all ages/stages. It helps the uterus during menstruation, pregnancy, birth, menopause, and with "uterus specific" challenges like prolapse. But it's kind of like taking calcium for strong bones or something like that... it's not "doing anything to you", it's just providing your body with stuff it needs to work properly (specifically smooth and even muscle contraction of the uterus). So no... RRL wont "cause labor" but it will hopefully prevent any dystocia caused by the uterus being wonky.
Also... a lot of the natural induction tools aren't intended to "start labor", they're mostly ripening agents. Meaning they prepare the cervix and encourage a smooth entrance into labor. At best they allow the body to respond to smaller amounts of birth hormones so that labor initiates sooner and goes more smoothly.
Where you start to cross the line is with acupuncture, herbal agents like cohosh, irritant/stimulants like castor oil, membrane sweeps, and (ultimately) foley caths and AROM. Where the goal is not just to encourage the body to do it's own thing but to actually initiate those physical/hormonal changes "for" the body. And the more active you are in terms of "doing it for the boy" the bigger the risks become. It's very unlikely that anyone would have a serious reaction to pineapple or RRL (barring allergy), or end up in the hospital due to a long walk or sex (barring extreme athleticism lol), but as you move further along the spectrum towards physical interventions the risks of infection or fetal distress increase.
And obviously... make sure you tell your care provider what you're doing or planning on doing. Herbal allies can interfere with western meds, and specific medical conditions (yours or the babes) can be affected by herbs, acupuncture, and supplements and not always in a good way.
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