Hey mama! Kailangan mo talaga mag-consult muna sa OB mo about evening primrose kasi bawat pregnancy is different at may conditions na kailangan i-check first, like kung may placenta previa or other concerns ka, better safe than sorry talaga! A few of my mum friends took it around 38-39 weeks and some delivered within days, pero iba-iba talaga, may nag-deliver after a week or two pa. Good luck sa darating mong labor, excited na kami para sa iyo!