Sister Carter,
What a blessing to receive such loving concern and godly counsel from brothers and sisters in the Lord as you have received here on sermonindex forum. Praise the Lord. I will add just a note to the good edification that was already given. We have been declaring the return of the Lord for many years, yet we have three children and five grandchildren!
These two scriptures come to mind immediately as I consider your question. First, Philippians 4:4-9
“Rejoice in the Lord always. Again I will say, rejoice! Let your gentleness be known to all men. The Lord is at hand. Be anxious for nothing, but in everything by prayer and supplication, with thanksgiving, let your requests be made known to God; and the peace of God, which surpasses all understanding, will guard your hearts and minds through Christ Jesus. Finally, brethren, whatever things are true, whatever things are noble, whatever things are just, whatever things are pure, whatever things are lovely, whatever things are of good report, if there is any virtue and if there is anything praiseworthy—meditate on these things. The things which you learned and received and heard and saw in me, these do, and the God of peace will be with you.” NKJV
Notice the apostle Paul clearly suspected that he was living during the time of the return of the Lord when he wrote, "the Lord is at hand." Yet he instructs to "be anxious for nothing, but in everything by prayer and supplication, with thanksgiving let your requests be made know to God."
Second, from James 1:2-8
"My brethren, count it all joy when you fall into various trials, knowing that the testing of your faith produces patience. But let patience have its perfect work, that you may be perfect and complete, lacking nothing. If any of you lacks wisdom, let him ask of God, who gives to all liberally and without reproach, and it will be given to him. But let him ask in faith, with no doubting, for he who doubts is like a wave of the sea driven and tossed by the wind. For let not that man suppose that he will receive anything from the Lord; he is a double-minded man, unstable in all his ways."
James, the brother of our Lord, was compelled to write that even in the midst of "various trials," that we should ask God for wisdom... and that we should fully expect to receive His wisdom in a matter if we fully believe.
In each case we find sufficient cause for anxiety to be stirred within believers, but in each case we find the instruction to pray and seek God's guidance. I would say that we should seek God's guidance / wisdom in all things, even in childbearing and especially in the last hours of this age. Yet procreation is a central part of God's purpose in marriage (Gen.1), in much the same way for example that bearing fruit is a central part of God's purpose in our relationship to Him through Jesus Christ. (Jn. 15) Thus, to a great degree those commands should be considered defaults for us.
At the same time, when we consider ways of bearing spiritual fruit unto the Lord, we should first and foremost consider our specific gift/s and call. To each one is given "a measure of Christ gift" (Eph. 4:7). So that whereas some may "win souls," very directly through preaching on the streets, others may serve in very important support roles. We see such a lead / support ministry relationship illustrated from Timothy to Paul for example. Each one is equally important in fulfilling the command (I Cor. 3:6).
IS CHILDBEARING A "LAW" COMMANDMENT? NO! IS IT AN ACT OF OBEDIENCE TO GOD'S COMMAND? YES!
As that example relates to childbearing, if we say that it is always and without exception a default command to bear children as the law to live "righteous" for example, some may interpret that to mean that they must bear as many and as often as possible. However, that was NOT the command God gave in Genesis, but only to "be fruitful and multiply, and fill (or replenish) the earth."
I knew of one family well that tried to do that believing that it was a law commandment, and after nine children straight, the wife and mother almost died. There family suffers in many ways to this very day, most of it due to a misunderstanding of that and other similar things put forth in the scripture. On the other hand, we are close to another family that has had seven children over about a twenty year period and the wife and mother (still in her mid forties) is very well and strong, able to support her husband in his gift and call as the head of the household; but they do not plan to have more children because they sensed the Holy Spirit telling them that was all for them. My wife and I believed the Holy Spirit led us to have three, and so we did. He has honored that in a great way because it was in obedience to Him.
REAL LIFE ILLUSTRATION:
Finally, I have been preaching the soon return of the Lord for many years, and the calamities that surround it. My children have heard that since they were born, and they are thankful. They all inquired of their mother and me, as to whether they should attend college, marry, have children and so-forth, seeing as the Lord is coming soon and the world will be filled with unprecedented tribulation. The Spirit of the Lord led me to tell each of them to seek the Lord concerning these things just as they would anything else. They did, and the Lord has honored that.
A BIG SURPRISE!
Well, in the last few years, we have punctuated this message of sudden destruction and disaster with emphasis (as the Lord has led). In other words, there has been plenty of room for the possibility of anxiety. Our youngest daughter and her husband were very concerned about having children in light of our times. But they prayed and the Lord showed them that He would care for them and their children, and that they should bear children. As a result, they had triplets! Surprise! Well, to them, and to Debbie and me, as well as others close to us - the Lord made clear that He DOES WANT HIS PEOPLE TO CONTINUE CHILDBEARING just as He designed us to through our marriage relationship until He makes clear otherwise (if He ever does).
That being said, I would pray earnestly with your husband on the matter, but unless the Lord tells you not to bear children, I would rejoice that He has brought you together for that central purpose and be fruitful and multiply. Then expect the Lord to lay hold of their lives early, as you train them up in Him so that they may serve Him well!
NOTE: The reference you made from the Olivet discourse in Matthew's account, was specifically an admonition to Jews in Jerusalem during the time of the Abomination of Desolation, and the immediate aftermath of horrendous war, when the Jews would need to escape rapidly. He did not say, "not" to bear children, but to "pray" that you would not be pregnant or nursing small children during that moment. By that, you might conjecture that He was indirectly instructing that prayer should be a part of the time for childbearing, especially during these last days; but He does NOT want us to have fear or anxiety about it, and with none, or with few, or with many, He is still Lord, and He will make the way for the fruit of His people born through living faith!