Su Yushan doesn't understand medicine; she can only see the color difference. As for whether there's anything wrong with these medicines, she'll have to ask a doctor to take a look.

However, her pregnancy is relatively stable and there is nothing to worry about. Doctors usually only come to check on her pulse once every two weeks. The doctor just came a few days ago. If she goes to check on her again, it may arouse suspicion and alert the doctor.

She needs to come up with an excuse.

That afternoon, she started sneezing intentionally. Yunfang already knew about it and deliberately said that she might have caught a cold and that she should ask a doctor to come and treat her.

Just as the doctor was about to arrive, Su Yushan gave Su Wen a task, asking her to go to the kitchen and tell her that she wanted to eat fish that night, steamed.

Suwen went out as instructed, and soon the doctor arrived at Huatang Pavilion.

Su Yushan took out the broken pills wrapped in a handkerchief and showed them to the doctor. The doctor, seeing this, was puzzled.

"What does Princess mean by this? Why did you crush the pill?"

"Take a closer look and see if there's anything unusual."

Upon hearing this, the doctor lowered his head in surprise, pinched the powdered medicine, carefully examined it, and even licked a little with the tip of his tongue to taste it.

Only then did the doctor realize something was wrong. "Princess, are you sure this is the bottle I prescribed?"

"Of course! All the medications I take to prevent miscarriage were made by you."

"This isn't right!" The doctor sensed something was amiss, so he took the medicine bottle, casually poured out a few pills, crushed three of them himself, and pointed them out to Su Gege to see.

"These two pills are indeed medicines I made, but this one is not. Although they look similar, the ingredients inside are different, and the smell is also slightly different. If I'm not mistaken, this medicine has been tampered with."

In other words, part of the medicine in this bottle is real and part is fake. Someone switched the medicine but was afraid of being discovered, so they mixed the real and fake medicine together in an attempt to confuse the situation.

Staring intently at the doctor, Su Yushan's expression grew cold. "You prescribed the medicine. Who has the ability to replace it?"

The doctor, who was being questioned, quickly knelt down to pledge his loyalty.

"Princess, please calm down. I have always been diligent in treating the masters of this household, and all the medicines I prescribe are genuine. I would never dare to substitute fake medicine! I have no idea who placed this fake medicine here. I beg you, Princess, to investigate thoroughly!"

"Then what exactly is this medicine?" No one would give out fake medicine for no reason. If they did, they must have had a purpose. Su Yushan asked about the medicine's effects, whether it was poison, and what harm it might cause. Doctor Zhao couldn't answer and said that it would take time to determine.

Su Yushan couldn't immediately determine whether the doctor had sabotaged the medicine or if it was someone else's doing. She couldn't easily release the doctor, but if she imprisoned him, it might alert the other people in the mansion. If the culprit was someone else, that person would find a way to deal with it.

After a moment's thought, Su Yushan called Yun Song in and instructed, "Please invite Doctor Zhao to the other courtyard for a cup of tea."

Yun Song understood and accepted the order with clasped hands.

The doctor repeatedly clarified that he was innocent, but Yu Shan was not in a hurry to draw a conclusion. "The innocent will clear themselves. Doctor Zhao, there is no need to worry. Everything will be judged after Fourth Master returns."

Yun Song glanced at him but didn't make a move. He said coldly, "Doctor Zhao, please!"

The pregnancy-stabilizing medicine was indeed made by him. Doctor Zhao knew he couldn't escape responsibility, so he could only follow Su Gege's arrangement and go to another hospital to wait for the results.

After the doctor left, Su Yushan did not ask Su Wen any questions, pretending to know nothing and acting as if everything was normal.

To avoid arousing suspicion, she actually had someone brew some medicine, claiming it was for her cough. But she didn't drink it; instead, she secretly poured it away.

When Hongli returned in the evening, Su Yushan told him about the fake medicine. Hongli, who had been in a good mood, immediately lost his smile upon hearing this.

"Who is so bold as to tamper with your pregnancy-preserving medicine?"

Su Yushan's bright eyes darted around as she pondered to herself, "Not many people can come into contact with this medicine, only Doctor Zhao, Suwen, and Yunfang. Yunfang would never harm me, so it's only those two left."

Yunfang is definitely the first one to be ruled out; Hongli wouldn't suspect her. "Then, between Doctor Zhao and Suwen, who do you think is more suspicious?"

"The medicine was prescribed by Doctor Zhao. If anything goes wrong, he will be the first person we look for. Logically speaking, he shouldn't have tampered with it. But this pill is special, and no one usually damages it. The fact that the candy was crushed today was purely accidental."

If my daughter hadn't accidentally crushed it, I probably wouldn't have realized there was something wrong with the medicine after I finished it. So, it's possible that Doctor Zhao risked prescribing counterfeit medicine. Suwen is new to Huatang Pavilion, so that's also a possibility.

The Huatang Pavilion was heavily guarded, but it was impossible to guard against it all. Yushan's pregnancy-preserving medicine was actually tampered with!

"These people have some nerve! They actually dared to plot against you. I will not let them off easily!"

Hongli was furious and intended to summon Suwen for questioning, but Su Yushan disagreed.

“If we ask her now, she will definitely say that she is innocent and knows nothing about it. If this causes a scene, the real culprit will be on guard. I think the most urgent thing is to find out the pharmacology of this drug and what its effects are before we can get to the bottom of it.”

Yu Shan's words made a lot of sense. After weighing the pros and cons, Hongli decided not to question Su Wen for the time being, but instead ordered people to keep a close watch on her every move.

At the same time, Hongli ordered Li Yu to lead men to interrogate Doctor Zhao. Doctor Zhao reiterated that he had not touched the pills, and as for the efficacy of the fake medicine, he was still testing it and it would take some time.

Emperor Hongli no longer trusted Doctor Zhao as much as before, so he sent the pills to Imperial Physician He for examination.

With only one pill, testing it is not easy, and it will take Physician He some time.

Upon hearing this incident in the manor, Hongli immediately became alert, fearing that Yushan might be harmed again.

During this period, Su Yushan had to pretend she was unaware and continue taking medication to prevent miscarriage.

Each time, she would press the pill under her tongue and then spit it out. She kept wondering, who was behind all this? Was it someone trying to harm her, or the child in her womb?

After three days of agonizing waiting, the result was finally in. Physician He said that this pill was called the Rebirth Pill.

If you are pregnant with a girl but want a boy, you can take this medicine three or four months later to change the sex of the fetus. But the medicine in question is designed to guarantee that you will have a daughter. In other words, the person who administered the medicine wants Su Gege to have a daughter!

Upon learning the truth, Su Yushan found it laughable. "Whether the fetus is male or female is determined from the moment of conception. How could it be changed by human intervention? This is utter nonsense!"

Physician He also believed that this medicine violated natural law and ethics.

"A doctor with medical ethics would not use this medicine; it is a folk remedy. This medicine is not very harmful to the mother, but it will affect the fetus. Even worse, after taking this medicine, the child born is hermaphroditic, neither male nor female!"

Upon hearing this, Hongli was enraged and slammed his fist on the table. "Which vicious villain dares to use such underhanded tricks to harm my women and children?"

Physician He's words made Yu Shan's heart jump into her throat!

She had been taking that bottle of medicine for two or three months. Half of the medicine in the bottle was real and half was fake. She didn't know when the "gender-changing pill" was put in, or whether it would affect the baby in her womb.