Since the vet is the one who told you about cervix stimulation, maybe you could ask him to do it? Based on reading the posts above, this is probably something you don't want to attempt yourself.
I just returned from the vet.
Because both of us processed the news, it was a nice conversation. The owner told me that he learnt about this incident yesterday when my friend asked about Sakız to him (My friend told me that he genuinely learnt that while they were there). He offered to pay for the operation since he is not specialized in pets. He'll call someone from the municipality who does this kind of operations.
I did not have any sleep last night. So I asked if the operation can be done earlier than 2 months. Again, he told me he's not specialized in pets so he called a friend of him, who is specialized birth and a published author. I do not remember his friend's name. He told us that the operation can be done 20 days from today. He said the parts that the 'vet' removed held ovaries in place, so it would be hard to find them, so the operation might involve more anesthesia than usual and her kidneys would not compensate for that these days. That sounded logical to me. So we'll wait for 20 days.
I asked him about how I could make Sakız shut up. He told me about cervix stimulation. Basically you make her think that she actually mated. How do I do that? By a cotton swab. I'll stimulate her for one minute and she'll calm down for at least 15 days. Normally that would be longer but we're in March, so...
Do you think I should stimulate her using a cotton swab?