AF CD24?

*TMI*

I've had sore boobs and cramps for about a week now. Today my cramps have been a lot stronger. When I wiped earlier I saw a small amount of pinkish red blood and have been keeping an eye on it. I then just saw anything ranging from nothing to light pink, but now I think it might be getting a little heavier. I threw a pad on just incase. I took clomid CD 4-8, is it normal to have AF this early on clomid?? At first I thought maybe it was implantation bleeding but it feels like it could be AF.

I've been irregular for about 2 years now, but before then I always had 32-36 day cycles.