I would suggest not rushing in to getting checked out. It's completely normal to take up to 12 months to get pregnant. The whole process of getting checked out adds a lot of stress to a relationship so holding off til you've been trying 12 months would probably be a good idea.

You need to remember that in each cycle you only have about a 20% chance of conceiving so that's why it can take a while. Some couples are lucky and fall quickly, but many don't.

I'd recommend you perservere with temping. If you keep at it you will remember to temp when you wake up. By temping I found I was Oing a little earlier than I would've expected and I also found I had a short LP. The best thing about temping is that you can use it to know when it's worth testing early and when not to bother (all that testing can get expensive, even with the cheapie tests).

One thing I can recommend to you is to try to eliminate trans fats in your diet. My ex and I suffered from unexplained infertility for years yet I had no problem conceiving with my DF once I pretty much cut trans fats from my diet (and I was a lot older so the odds were against us).

Research shows that transfats does appear to be causing infertility in some women. Google trans fats and infertility and you will see what it's all about. It's really easy to cut out of your diet by eating healthier and avoiding certain things like pastries, pies, donuts, biscuits, cakes, margarines and butters that are high in transfat (change to olive oil and olive oil spread). Some fast food is full of transfat, others aren't - it depends on what sort of oil they use. Some supermarket food is labelled so you can tell if it's in it but others aren't. If it's got very little transfat in it you will find they list it.

It may sound silly but I truly believe it helped me and trust me, I had tried all sorts of strange things over the years that never worked. Best of luck.