What is going on.

We have been trying to conceive for 4 years. We did a couple of trials of comic 2 years ago and nothing happened so we took a break. We are now back at it. I was put on high dosage of metformin and also progesterone. The first dose of progesterone I only spotted for a few days. Is that a normal or bad thing? Also when I went to get my transvaginal ultrasound it really hurt does that mean something is wrong? Lastly according to glow this is my 3rd fertile day and no happy two lines on my ovulation test does that mean anything. We don't have funds for <a href="https://glowing.com/glow-fertility-program">ivf</a> so this and God is my Only hope. Any feedback would be great.