Hi Jenny Chia,
Have you tried through a massage service instead? A friend of a friend of mine tried a massage service with this particular Malay Massage Lady in order to conceive. She is from Phillipines married to a Singaporean for 10years but no luck and therefore after received 14-28 days massage treatment (if I'm not mistaken, it was few years back) and bought several herbs remedy based on her strict instructions, she conceived and she was very delighted! No harm trying in case if you wanna give it a go. Hope it helps.