I drink red raspberry leaf daily starting at 20 weeks. I get Braxton Hicks as I’m finishing my cup every night except for nights I skip and don’t drink it so I know it is working and toning my uterus. I haven’t heard any evidence about it actually inducing labor though.
I used it from about 20 weeks and plan to do the same this pregnancy! I doesn’t induce labor it’s just meant to strengthen your uterus