Hey, my brother and his wife went to Dr Colin for 2 years and it didnt help them at all! In the end they went to a fertility specialist and got a couple rounds of clomid and voila, they got pregnant.
On a separate note friends tried for 8 years and nothing, went to Dr Colin's, got all the herbal tea's etc, she went for acupuncture there every 2 weeks, they went on a diet he suggested, no alcohol, caffeine, chocolate and wheat and 3 months later they where pregnant!
I also battled for over a year after a MC and I went to a chinese guy for acupuncture AFTER going to a fertility specialist for Clomid and other drugs for 4 months, and voila I got pregnant within the month.
I think you need to decide how much it means to you to get pregnant. Dr Colin's is very expensive, but so is a fertility specialist. the only difference is, do you believe in herbal medicine or not?
Hope this helps.