Well it looks like the acupuncture didn't do much for my luteal phase, it ended up only being 10 days again as AF arrived yesterday.
I was really bummed this cycle because I really thought I'd done everything right and was sure I was going to fall pregnant. I guess the universe and my stupid body had other ideas.
I will give the acupuncture one more cycle to see if it makes any differences otherwise it looks like I'm going to have to visit a fertitily specialist after all. I really didn't want to have to do that as I'd much prefer to try and fall pregnant naturally, but it seems that just isn't happening.