Many women can take care of children when not married. I was a single mother for 4 years, from the age of 18 till now, awaiting my second child with my fiance. There's nothing wrong with being a single mom, and getting pregnant when not married but with someone. As long as it's a comitted relationship. The idea of being pregnant without being married is often scary, because most couples can hardly handle ANY stress during the first dating stage. Pregnancy, I agree, is the most stressful time in a couple's life, other than a death in the family, but a strong relationship can overcome that. Speaking from experience, I sometimes think being a single mom is WAY easier than doing it with someone, but hey, it works either way if you want it to and TRY and WORK for it to be fine.
People just don't work hard enough at it and that's what makes it fail.
Raising my daughter by myself until now, was EXTREMELY easy. Just that. Easy, I went to college, worked, took care of us all by myself, did fine, and it was easy.
I find nothing wrong with being a single mother, as long as you grow up for it.