Unwanted pitstop - advice?

Hi everyone,
Sorry if I'm not posting it right, I'm not really sure where to ask...

My driver pitted before the last lap of the race in Hungary. The alarm showed up as she was entering in the very last corners, and as she had 1.3 laps of fuel remaining, I quickly canceled the pit. But I wasn't apparently fast enough because she pitted anyway
(It was really annoying as I dropped from 3rd to 7th ^^')

So I would like to know if there's anything I could do to avoid such problems in the future?
I already had that kind of situation before, but the alarm would show up earlier in the lap so it wouldn't be a problem to stop it on time.

Thanks for your advices and sorry for any inconvenience,
And also thank you for this really great game

I'm guessing you put your push level to 5 ready for the Last lap? That's why your driver would pit with 1.3 laps of fuel, thinking they won't make it round. I'd say either change your PL at the start of the penultimate lap so you get plenty of warning, or avoid changing it until you pass the pit entrance.

Yeah I think I was.
Thanks for the advise, that's a tricky one