To try to answer your question, you will have to find out the reasons for "male fear". Of course, nothing will be decided, and you, in any case, will have to summon the husband to a frank conversation. Perhaps he is not ready morally. Was your first child a planned child? If your husband once before the wedding found out that you are expecting a child, and the conclusion of marriage was a forced decision in the situation that arose, do not be surprised at his resistance. He is not morally mature enough to be a father. Try to prepare it, encourage it, praise it when it takes care of the first child. When in his head firmly seated self-confidence, as in the father, then, most likely he himself will offer you to give birth to a baby. Do everything unobtrusively, otherwise, apart from resistance, you will not achieve anything.
What to do if the husband does not want a second child and talks about abortion? First of all do not panic. A man will never know what it feels like to feel like a child and perceives the abortion as an ordinary trip to the doctor. Calmly and convincingly talk to him about that, give weighty arguments. Explain that abortion is murder, and you do not want to kill a child from your beloved husband, show the results of ultrasound, even better, if it is a video recording in 3D. In all the "colors" tell us about the consequences of abortion. If your husband really loves you, then he cherishes your health and, having thought better of it, will not let you go to crime. There are situations when a second pregnancy is needed to solve female diseases, in this case, go to the doctor together. A convincing explanation of the expert will help to keep the pregnancy.
The husband does not want a second child because of material instability? Then sit down together and write down on a sheet of paper, calculate all the current costs for the child. Most likely, the figure will not be so "terrible" and your family budget will master it. Learn to save. You can explain that many things "will pass" from the first child, which will significantly reduce the planned costs.
If you already carry a second child in yourself and hide it from your husband, then do not be surprised then his reaction. Unexpected pregnancy will not please him, on the contrary, he will feel deceived, and loss of confidence will greatly affect relations. Offended in this way, a man may even refuse to communicate with you and the future baby and no sense of duty will help. A woman's decision can greatly hurt a man's pride, especially when "the last word is his," but suddenly you have an independent decision. Before doing so, think carefully about the consequences.
The husband does not want a second child because your first child grows unsettled, and the thought of sleepless nights terrifies him. Perhaps your first pregnancy was problematic and the fear of losing you will not give him rest. Can you, while doing household chores and raising a first child, do not pay enough attention to your husband, and he resists because he does not want to be "pushed" to the "background"?
If your family relations do not develop, the threat of divorce hangs, and you decided that the second child will be the "lifeblood" of your "sinking" family life, then this is not so. An unwanted child will become a constant irritant, then why do we have to condemn the child to such a life in advance? If the man decided to leave the family, then at least give birth, or do not give birth - it will not keep him.
Plan together the second child and then all the mountains will be "on your shoulder"!