Confused am I going crazy....

am

So I didn't track ovulation this month so I'm not 100% sure when I ovulated a day before my af was due to start I started spotted I kinda thought this was my af however it stopped after 2 days and stayed at just pink spotted the whole time. I had some cramping but was more like a pulling and pinching feeling for a few hours. So this morning I tested just to see and got this? The spotting was 3 days ago now so if that was implantation would this be darker by now? We have been trying nearly 18 months now and so this would be abit of a miracle if it was something. Thankyou :)