I've been having it on and off since january which is when we had our first appointment at the fertility clinic after 18 months of trying and an mc. Like you OP, I wanted to feel a bit more in control and that I was 'doing something' amid all the waiting around. I had acupuncture about 5 years ago for a completely different issue but one side-effect I wasn't expecting was that my irregular, painful periods completely evened out. For that reason I thought it might help with fertility.
I'm not convinced it made much difference to my cycles and I didn't get pregnant naturally during treatment but I definitely found it helped calm me down, boost my energy and the psychological benefit of having someone to talk to about TTC who wasn't a medic but had a lot of knowledge was definitely helpful. I then had acupuncture throughout my first IVF cycle which resulted in a surprise BFP (still in shock!). I have no way of knowing whether the acupuncture made any difference but I certainly felt calmer and more relaxed because of it.
When you first go the practitioner will take a history of your symptoms (very holistically), feel your pulse, look at your tongue and give you a diagnosis from a Chinese medicine perspective. I found that really interesting alongside the western one. You then lie on a couch while they put the needles in at appropriate points. You can feel the needles but it's not a pain as such and there is not usually any blood unless they nick a capillary. I bruise easily so did get occasional bruises. I would have on average about a dozen needles in a treatment at various points - wrists, ankles, knees, abdomen, top of my head - but the location will depend on your individual diagnosis. The needles stay in for 25-30 minutes or so by the end of which I was usually asleep! My first appointment was an hour and subsequent ones were 45 minutes long. I'd say it's worth a try, if it's not for you you don't have to pursue it further.