So she's done with two? Hope she's now settled in, small litters can be difficult as the weeks pass mum can lose interest especially if she comes into heat
If you can get digital scales (used for cooking) its very beneficial to weigh at the same time each day and ensure the kittens are gaining weight
10 grams per day at least, though there can be off days here and there
If she'll allow you, gently press her stomach from underneath/between her legs. If will be quite soft if no more kittens are there, otherwise you should be able to make out the small lump of a kitten.
Given the time that's passed she's likely to be done.
You'll certainly have some words for your friend when they return! They left you in quite a spot.
Tomorrow i have another appointment with vet.........He told he will put cat on antibiotics..........I will keep you update with my process.....As i am female cat for the first time in my life and without knowing anything about her pregnancy time and date
Why does she need antibiotics, is she sick? Also be very careful as she is nursing her babies anything she takes can get passed on through the milk, you don't want to be left handraising the kittens.