Missed the "right time" for taking SAT subject test

This year was my junior year and I took AP Calculus and AP Bio, which if I had taken the SAT Subject tests for Math I and BioE/M tomorrow (June 4th) would have been great but I totally missed the date and would now have to take them on October. I am wondering if anybody had this experience and would like to share how it was.
Was the test harder since there was a time gap of few months and the subject was no longer fresh in your mind?

Also, do a lot of colleges want the scores of the subject tests?

Review toward the end of the summer and u should be fine

I took Chem and Math II in the December after I finished AP Chem. It was rough. Get a prep book if you can find an affordable one. I only used the materials available on the website and still think I could have been more prepared.

Actually, you should have taken math after precalc, and you should take Math II not Math I. Better late than never, I guess.

Relatively few colleges require/suggest Subject Tests. The ones that do will say so on the websites.

I was supposed to take my subject tests today, but when I went to print my admission ticket yesterday, there was no record of my registration. I called college board and they said they’d deleted it a few hours prior because it was missing a piece of information. So now I’m in the same boat as you. Just try to refresh during summer, it’ll be a lot easier to re-learn the content a second time than the first time.