Becca - I do see something but I don't know if it's the dye. It does seem to form a faint line though. I don't know
I find ICs annoyingly hard to read.
With the progesterone there are lots of things you can do both yourself and via your doctor. I think the first thing you should do is have it checked out. If you know when you are due af, or there abouts, ask for a blood test a week beforehand then see what those results are and if it's low, how low it is as this should give you a better idea of whether you can treat this yourself relatively easily or whether you may have to have some pessaries (they can also be used as suppositories, usually in the case of frequent UTIs).
Some things you can do yourself are take a good prenatal vitamin complex. You can also top up those with a heavier influence on progesterone like the B complex is absolutely imperative. Make sure you are eating as good a diet as possible and make sure your gut is in good health by taking a supplement (acidophilus) or eating a natural probiotic yoghurt, or drinking probiotic drinks like Yakult.
There are lots of things with diet you can do, I can't remember off the top of my head, but Google will give you a good idea.
You could also look into acupuncture as this is frequently used for help with ttc and a number of other issues such as balancing hormones.
To add - it may be worth getting tested out for BV? This has added to some of the issues I have been experiencing and I didn't know I had it until I bought the Canesten test for it. It's a simple swab test which turns a weird greeny blue colour if you have it, and then it's a matter of using a week's worth of pessaries for many women. I did this and it went away. I only mention this because BV itself can cause many complications during pregnancy and can be responsible for difficulty ttc and also early miscarriage. Some people don't see any symptoms, and some see symptoms which can be confused with their cycle (like watery cm, which is classed as fertile cm in most cases but it can also be a symptom of BV). It isn't always obvious you have it unless you can smell it. I don't know how long I had had it for but I had seen a lot of watery cm for ages beforehand and then out of the blue I could smell this odd and slightly unpleasant smell after sex which is what led me to look into it, and then test for it. You doctor can test you for it too but you can buy over the counter if you prefer.
The reason I didn't go to my doctor about it is because I knew I would be prescribed antibiotics which can make the problem worse. Basically BV is a bacterial imbalance in your vagina, and the pessaries balance things back out. Of course antibiotics kill all bacteria, which usually leaves women suffering from the problem soon afterwards because the meds have wiped out all the good stuff too
