I totally understand the insurance angle but why don't you give this some more time? It's possible to be great co-parents and not get married, or get married a bit down the line. Be as supportive as possible, the fact that you are sticking around at this age speaks volumes to your character. A few of my friends have babies with their boyfriends and aren't married now but plan on it in the future. I think you should see how your relationship weathers over time. Unsure on how you feel about the relationship now, is it loving? supportive? Are you best friends, have you known each other long? I think there are more factors to consider besides the baby, but I do get that insurance (and taxes) are a huge thing. My bf and I have been together 10 years, no kids, weddings give me anxiety, but we are commited. We are thinking about getting married in the next few years because we know we are right for one another, work hard at our relationship, are great friends, and also it would make our various insurances and taxes a little easier. Definitely a personal decision, but I would see how things change post-baby. Just don't bail on the baby if it doesn't work out with you two, that's the most important thing I think.