Raspberry leaf tea Q?

When is it actually safe for baby to come , ive been reading baby doesn’t fully develop until the end of 38 weeks (brain and lungs )

I started taking the raspberry leaf tea yesterday and my sister-in-law swears that made her go into labor .

She took it for a week once at night and then on the actual day she went into labor she took it 2-3 times that day and BAAM had her baby .

Then another friend only took it for 3 days once a day and BAAAM had her baby lol

They both told me it help them or could it be coincidence... i dont know .

But they both had the babies at 37 close to 38 weeks .

Im just worried if i should wait and let baby cook longer or just give it a try and see if it happens ....

Note ; im trying for a vbac and doctor told me that they will induce me until 41 weeks if baby doesn’t come on it’s own but warned me that i could end up in a csection . So i really want to dilate the natural way.

Currently 37 weeks 1 day

Have you guys experienced or seen baby having problems due to coming before 39 weeks ?