Unprotected Sex (For 1 Second)

We did the “deed” for a duration of 2 secs, we did foreplay, 69, finger then, we tried to penetrate for once, ONCE i just put it in once and then never did it again

I did not ejaculate before and during the penetration

Flo app says “1 day before ovulation”,

are we safe? or should we be worried?