I don't understand anything anymore. Help?

Good morning,

I hope there are people who can relate to my story and have some tips.
We've been trying to conceive a 2nd child for a year now. 3 years ago I got pregnant within 3 weeks and it went very quickly. After a difficult birth, we started trying again a year ago. I've been testing with ovulation tests for a year now and always measure an ovulation around the same date. Now, for the last 3 months, my period has been vague and light, but so far not pregnant. Last Monday I tested a strong positive ovulation test, my husband saw it. I also had a lot of pain and cramps from the ovulation. So I took action and since yesterday morning I've had a huge dip, extremely tired but I had also been sick with a cold, but extremely tired. Last night I got cramps, sensitive breasts and went to bed early, not feeling quite well. This morning I had a lot of mucus when waking up, cramps and when wiping a few spots of clear blood? I was startled by it and because of the cramps I grabbed an ovulation test, this tested positive again but not darker than the test line but really almost as dark. I don't understand anything anymore, can you have a double ovulation in 1 week? Can I already have implantation bleeding? And isn't that brown blood? We start the fertility consultation in October and of course hope that this won't be necessary. I still have cramps and lower back pain now but the fatigue is already less. Anyone who knows what this is? Or recognizes it?