Implantation symptoms?

Y’all I think I’m going crazy!

I have been moody, emotional and just plain meh. I also been crampy, had diarrhea and brownish tinged egg whitey CM.

I been using opk and I haven’t had a positive test yet but I only been testing once a day because I don’t have enough to test both in the morning and evening.

I’m on cd 24 and my last period was irregular and ten days long.

So do you think I may be experiencing implantation or am I having the shortest cycle yet and my period in around the corner.