Irregular periods

Just after some advice. So been ttc for around 3 years now always had really regular periods every 30/31 days. I had a normal af in January then nothing until April when I had another normal af. I've had all blood tests and an ultrasound everything is fine and no sign of pcos on the ultrasound and was advised to just wait it out and see what happens. For the past 3 days I've been having brown/pale red spotting on the toilet paper and some random cramping. I thought it may be my af finally starting but it never gets any heavier than this little bit of spotting. Anyone experience this before? I gave up <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> due to having no af for a few months. Just wondered if anyone had any advice really 🤔 3 years ttc I just want my af to be back to normal so we can continue ttc. Thankyou :)