Did you read this part?
Paul doesn't encourage marriage, but he doesn't forbid it either. This isn't a command from the Lord, but rather this is Paul's "...judgment as one who by the Lord’s mercy is trustworthy." He considers it to be sound advice given the "present crisis" because "time is short."
1 Cor. 7:32-38
32I would like you to be free from concern. An unmarried man is concerned about the Lord’s affairs—how he can please the Lord.
33But a married man is concerned about the affairs of this world—how he can please his wife—
34and his interests are divided. An unmarried woman or virgin is concerned about the Lord’s affairs: Her aim is to be devoted to the Lord in both body and spirit. But a married woman is concerned about the affairs of this world—how she can please her husband.
35I am saying this for your own good, not to restrict you, but that you may live in a right way in undivided devotion to the Lord.
36If anyone is worried that he might not be acting honorably toward the virgin he is engaged to, and if his passions are too strong and he feels he ought to marry, he should do as he wants. He is not sinning. They should get married.
37But the man who has settled the matter in his own mind, who is under no compulsion but has control over his own will, and who has made up his mind not to marry the virgin—this man also does the right thing.
38So then, he who marries the virgin does right, but he who does not marry her does better.
1 Cor. 7:40
40In my judgment, she is happier if she stays as she is—and I think that I too have the Spirit of God.