I suggest you have some of my books. Then, you will not only have all the answers rather you will be able to guide people.
I hope brothers Jawaid Ahmed, Arif Shamim and Sister Umm Aimon show up soon to field questions.
I wonder why the veterans shy away from answering!
Here is 19:22.
19:22 And in time she conceived him and withdrew with him to a far-off place, (Bethlehem).
Q.1- Was Mary pbuh pregnant when angel visited her?
A. Please assess the importance of this question. But the answer is NO per 19:22 plus many other verses :-)
Q.2- Why she was so depressed if she was not guilty of being un-married at the time of Jesus birth?
A. Having broken the rules of the shrine, she feared the mockery by people.
Surah 19. Maryam – Mary
[Author’s Note] This is the 19th Surah of the Qur’an. It has 98 verses. One of the important injunctions that clearly come through in this Surah is that God makes laws as He wills in the World of Command and enforces them in the World of Creation i.e. the Universe. Then, He never changes them. The grand empire of human learning, development, invention, science and technology would have failed to come off ground if God’s physical laws in the Universe were to keep changing. Pregnancy and childbirth require the unison of the male and the female chromosomes. God never changes His laws, therefore, the idea of a virgin birth, although popular among the Christians and the Muslims, is non-Qur’anic and absolutely erroneous. Mary, the mother of Jesus, is probably more often mentioned in the Qur’an than in the Bible, as a lady of outstanding determination and character. Prophet Zacharias was the elder contemporary of Mary. Both descended from Prophet Aaron. The families had been the custodians of the holy shrines in Can’aan (Palestine) Zacharias, a distant uncle was Mary’s guardian in the sanctuary. Jesus is referred to as son of Mary because his mother was more prominent and also because his father Joseph the carpenter, died at an early age. The Bible also refers to Jesus as son of man and as son of David, and Elizabeth wife of Zacharias is called the daughter of Aaron. Also, in the history of mankind Mary was the first revolutionary and that too, a feminine voice against the institution of monasticism that was never Divinely ordained.
Before moving on, let us note a few salient points for the sake of clear understanding: (i) Mary was a descendant of Prophet Aaron. Even generations after a prominent man, it was customary to call the descendants this way. In Luke 1:5 Elizabeth, the wife of Prophet Zacharias, is referred to as “One of the daughters of Aaron”. That is why Mary is referred to as sister of Aaron in 19:28. (ii) In verse 19:23 it appears that Mary is talking to her husband. Violation of the sanctuary rules, a land far from home, lack of shelter and labor pains all add to her grief. Now a few important concepts given in the Qur’an that strongly negate the fallacy of the “Virgin Birth” of Jesus. (iii) God does all things according to His laws. [3:40,19:9]
(iv) And you will never see God’s laws changing or deviating. [6:34, 6:116, 10:64, 17:77, 18:27, 33:38, 33:62, 35:43, 40:85, 48:23]
(v) The example of Jesus, as far as God is concerned, is the same as that of Adam. He created him from dust; then said to him, "Be", and he was. [3:59]
(vi) By Adam is meant all mankind. [7:11]
(vii) All men are created from dust, then from a zygote, male and female. [22:5] (viii) The Qur’an emphatically and repeatedly states that all human beings are procreated from both male and female, without exceptions.
(ix) Even God would not have an offspring since He never had a mate. [6:101] (x) Verse 19:22 narrates Mary moving far-off from her village. Since Mary had broken the rules of the shrine, she and her family kept the marriage with Joseph Carpenter confidential. When she became pregnant, the husband and wife decided to move far away to avoid the mockery of people.