Is it possible to ovulate twice?

I ovulated on Saturday confirmed with opk strips and bbt . However I noticed EWCM today in the shower and tested my LH and it was high. I know that you’re supposed to stop testing but last time I was pregnant the only way I knew I was ovulating was EWCM (I had gotten peak on clear blue strips 2 weeks prior) and that ended in a miscarriage. So I am wondering if it is at all possible?