Can anyone tell if these flowers have been pollinated?

I'm growing tomatoes for the first time and am not really experienced with plants in general. The first set of flowers are now withering and I'm not really sure if they have been pollinated and will become fruit or are just simply withering. I get that the petals have to fall off first but most of the connecting stems (pedicels?) have gone yellow which usually isn't a good sign. Any insight is appreciated. Thanks! I'm from Northern India btw and spring is beginning here. Although why is stating my location a rule?🤔