After entering the house of His father, He was embraced by the mothers present, and the Lord offered His obeisances unto them by placing His head at their feet. The mothers were headed by Devakī (His real mother)."
It appears that Vasudeva, the father of Lord Kṛṣṇa, had completely separate residential quarters where he lived with his eighteen wives, out of whom Śrīmatī Devakī is the real mother of Lord Kṛṣṇa. But in spite of this, all other stepmothers were equally affectionate to Him, as will be evident from the following verse. Lord Kṛṣṇa also did not distinguish His real mother from His stepmothers, and He equally offered His obeisances unto all the wives of Vasudeva present on the occasion. According to scriptures also, there are seven mothers: (1) the real mother, (2) the wife of the spiritual master, (3) the wife of a brāhmaṇa, (4) the wife of the king, (5) the cow, (6) the nurse, and (7) the earth. All of them are mothers. Even by this injunction of the śāstras, the stepmother, who is the wife of the father, is also as good as the mother because the father is also one of the spiritual masters. Lord Kṛṣṇa, the Lord of the universe, plays the part of an ideal son just to teach others how to treat their stepmothers.

(Srimad Bhagavatam------1:11:28---------translation and purport).

When he was only five years old, Prince Dhruva, a great devotee and the son of Mahārāja Uttānapāda, was sitting on the lap of his father. His stepmother did not like the King's patting her stepson, so she dragged him out, saying that he could not claim to sit on the lap of the King because he was not born out of her womb. The little boy felt insulted by this act of his stepmother. Nor did his father make any protest, for he was too attached to his second wife. After this incident, Prince Dhruva went to his own mother and complained. Hisreal mother also could not take any step against this insulting behavior, and so she wept. The boy inquired from his mother how he could sit on the royal throne of his father, and the poor queen replied that only the Lord could help him. The boy inquired where the Lord could be seen, and the queen replied that it is said that the Lord is sometimes seen by great sages in the dense forest. The child prince decided to go into the forest to perform severe penances in order to achieve his objective.

(Srimad Bhagavatam------2:7:8--------- purport).

"If a person has neither a mother nor a pleasing wife at home, he should leave home and go to the forest, because for him there is no difference between the forest and home." The real mātā, or mother, is devotional service to the Lord, and the real patnī, or devoted wife, is a wife who helps her husband execute religious principles in devotional service. These two things are required for a happy home.

(Srimad Bhagavatam------4:26:15--------- purport).

Mother Yaśodā did not understand that Kṛṣṇa is the heaviest of all heavy things and that Kṛṣṇa rests within everything (mat-sthāni sarva-bhūtāni). As confirmed in Bhagavad-gītā (9.4), mayā tatam idaṁ sarvaṁ jagad avyakta-mūrtinā: Kṛṣṇa is everywhere in His impersonal form, and everything rests upon Him. Nonetheless, na cāhaṁ teṣv avasthitaḥ: Kṛṣṇa is not everywhere. Mother Yaśodā was unable to understand this philosophy because she was dealing with Kṛṣṇa as His real mother by the arrangement of yogamāyā. Not understanding the importance of Kṛṣṇa, she could only seek shelter of Nārāyaṇa for Kṛṣṇa's safety and call the brāhmaṇas to counteract the situation.

(Srimad Bhagavatam------10:7:19--------- purport).

If a real mother wants her son to progress spiritually, she had better allow him to go out searching for Kṛṣṇa. The mother naturally desires the welfare of the son. If a mother does not allow her son to search for Kṛṣṇa, she is called mā, which indicates māyā. By allowing her son to go as a sannyāsī and search for Kṛṣṇa, Śacīmātā instructs all mothers of the world. She indicates that all sons should become real devotees of Kṛṣṇa and should not stay at home under the care of an affectionate mother.

(Sri Caitanya Caritamrta--------2:3:181---------purport).

There are seven kinds of mothers, according to Vedic injunction: the real mother, the wife of a teacher or spiritual master, the wife of a king, the wife of a brāhmaṇa, the cow, the nurse and mother earth. Because Pūtanā came to take Kṛṣṇa on her lap and offer her breast milk to be sucked by Him, she was accepted by Kṛṣṇa as one of His mothers. That is considered to be another reason He closed His eyes: He had to kill a nurse or mother. But His killing of His mother or nurse was no different from His love for His real mother or His foster mother, Yaśodā. We further understand from Vedic information that Pūtanā was also treated as a mother and given the same facility as Yaśodā. As Yaśodā was given liberation from the material world, Pūtanā was also given liberation.

(Krsna Book).