After Making Love We Hear Footsteps by Galway Kinnell

Okay so after reading the poem, I was a little confused about the characters in the text. I wasn't sure if Fergus was the son or the husband. Correct me if I'm wrong but after reading it numerous times, I assumed that Fergus was the husband because at the beginning the wife was describing how her mate is when it comes to noise. "that heavy breathing" and that "come-cry" symbolized how the husband is alert when it comes to his child's safety and care. "Wrenching himself awake" and "make for it on the run" is an action word to support the husband's speed to getting to his toddler.
The entire beginning of the poem is to introduce the significance and beauty of reproduction. Then she goes on to mention how they lay next to each other after making love. Notice the terms "making love" and not "sex." Sex has a more derogatory sound to it, an interpretation that simply means casual sex. While in contrast, "making love" has more of an intimate sound and meaning. Something shared by not just any two people but by two people that really love and care for each other.
Then eventually, she brings in her son (assuming its a boy because she said his "baseball pj's). He then flops between his parents and drifts his way to sleep. He too is very happy and satisfied with the fact that he has two loving parents that created the person he is ("his face gleaming with satisfaction at being this very child"). Them making love made a beautiful thing and that's the blessing of a child. The love they have for each other caused them to now be able to bestow it upon their seed. Thus, they are joyful at such accomplishments.