My teen is pregnant...

Things are great until they are not. All has seemed to be good but of course things are not always as they seem. This weekend has surely been an interesting one. My husband and I have a 16 year old, 10 year old and 5 year old. And my husband has a 13 year old son (he cheated, we stayed together and worked through it all). This weekend our only daughter, 16 years old, told me she is pregnant. I am in shock. Never imagined having to deal with something like this. I haven't told my husband yet. Trying to figure out the way and time to have me, him and our daughter sit down to talk about this and discuss next steps--whatever they may be. And my husband came home on Saturday evening, from spending the day with all his sons and told me his 13 year old son wants to move in with us. His son doesn't want to live with his mother anymore. He just wants to visit her once in a while but day to day live with us. I won't tell my husband no, if that's what he and his son want to do. But it truly is about to be many changes and a lot less room. And I don't know how to feel and what to do or how I would feel about either choice my daughter makes. And my husband (her father) is probably going to impose a choice on her and not leave it up to her. I would love to tell her what to do but I also feel like that would not be right. I don't know what to do or feel. Does anyone have a teen parent, child??? Any tips??? EDIT:: I spoke to my husband alone, first, because I want him to remain calm when we talk to our daughter this evening along with the young man (who is the father of the baby). The young man is also 16 years old and they go to school together. And I spoke to my husband alpne first because we have to figure how to accommodate his son (my bonus son) who is going to move in and also talk about how we would accommodate a baby, if our daughter is going to have the baby. I will not kick her out because of this and I needed my husband to understand and be on the same page as me on this and he is. We are both shocked, hurt, disappointed--and neither of us are teen parents nor have any immediate experience with teen parents and it is a lot. I spoke with my daughter and she answered all my questions and definitely learned way more than I think I wanted to. But I remained calm and just gave her a hug and kiss and told her we will talk with her dad and the baby's dad too and that she doesn't need to be nervous to be honest and no matter what it will all be okay. If she keeps the baby it will be hard for her as she will need to care for her own baby, but I told her about all of this too and she says she understands but doesn't know what she wants to do. So after a conversation tonight with all of us together, hopefully a solution will be decided on. The young man and his parents will be coming by after dinner. I have cried in my husband's arms at night since learning all of this. I feel I failed as a mother and have fears that our younger children will follow the same now. I don't know....this is a lot!!!!!! ADDITIONAL EDIT: My bonus son moved in today; he wanted to be away from his mother so we did not want to put him on the back burner and make him wait. Our daughter decided she wants to have the baby and the baby's father doesn't want to be involved and his parents kept insisting abortion. My husband and I do not want to impose abortion on her. And me especially, when it is something I wouldn't do. Daughter will remain home and she will do schooling from home and she will have to rearrange her bedroom to make room for her baby. My husband and I are not willing to give her baby a bedroom because we do not want to encourage "comfort" in every sense of the word. We told her she needs to get a part-time now and maintain it throughout her pregnancy. And after pregnancy, she can take 6 months off but must resume working and school after that. And we expect her to move out with her baby on her 21st birthday or before; so basically we will allow our daughter to live at home with her baby for up to 5 years. As soon as she turns 18, she will need to buy her own groceries and pay rent for her bedroom and all the utilities, since she does and will have access to all of them. We are hoping and praying our other children will not follow the same steps as their sister and hopefully these rules we set in place will teach our daughter to grow up and will help her get on her feet but also learn independence, as living at home, is now on a timer. And surprisingly, our daughter seems calm. She had a lot of questions for us but is calm. My husband and I are barely hanging on now, so I don't know how we would do if we had to go through this again. The tears are endless.