I'm new and needed some advice because I'm very confused 
I had a positive ovulation late at night on the 18th. Vvvv positive. I hadn't tested before that, I wish I had now! But it wasn't as dark the next morning so the surge was going down. And then on the 21st I was out shopping and felt a bit of leaking 
enough to feel uncomfortable and wet until I got home. And when I went to the toilet it was a yellowy colour with like.... Streaks of brown old blood in it? I found it very strange. Could it be from ovulating? I have heard implantation can be a yellowy brown discharge but that's way too early to be implanting, even if I ovulated the day I got the positive. Could I have ovulated before the positive test? It could have been positive before the 18th but like I said I hadn't tested. Any thoughts? Ive also had very sore lower back the past few days. Hard to explain how it feels but its kind of like I've slept funny and you wake up with an achey back? ... But it's been like 3 days and it's not going away. Also some crampies. We haven't been trying long but I have pcos so I think maybe I'm clutching at straws.