This is awesome! I couldn't agree more. Marriage doesn't guarantee a commitment and married people also have unplanned pregnancies.
I myself don't need a to legally state I am married to feel 100% committed to my best friend and love of my life. We have talked about it and keep saying one day we'll get around to it. But really, neither of us cares one way or another. We talk about the future in terms of retirement, children, travel, etc... a life lived together. The traditional idea of marriage has been changing for some time. I have a great aunt and uncle who have been shacking up happily for 45 years or so.
As far as birth control methods, yes both sexes are responsible. But the woman is in the unique position of being the one that gets pregnant. I was about to turn 20 when I found out I had gotten pregnant. I had been on the pill. I had only been with one person, and he and I had been together for sometime. My boyfriend urged me to get an abortion. But being a strong willed woman, I noted his opinion and considered all my options myself. I even looked into the RH shot I would need due to being one of the 15% that is negative for it. In the end, I decided to abort at 4-5 weeks. Afterward, I was relieved. And since, I have not regretted it once. I realize to some, I am a murderer. Fortunately, those opinions do not bother me. I took the course of my life in my own hands that day. I made a decision for myself and my body that is really no one else's business.