My husband & I have been together for 7 years & last year I let him know that I was interested in trying out polyamory. I started a long distance relationship with another man who was also poly & checked in with my husband before any new decisions were made. Over months my partner decided he wanted to try committing to just me & broke up with his primary. He couldn't commit fully though, there were lies & cheating so I ended it. Then found out I am pregnant with his baby. Any advice?
Everything gets much more high-stakes when there is a pregnancy involved. The first thing you need to do is figure out what you want to do about the pregnancy. I recommend visiting with your doctor or heading to a Planned Parenthood to talk about your options, what you need to do to take care of your health, etc.
You also need to talk to your husband about what he wants to do. Some people, like me, are strongly of the belief that genetics do not a family make, so it could be that he is excited and wants to raise the child - or he could feel more ambivalent. It is unfair to bring a child into a situation where one of the people responsible for co-parenting is struggling with the facts of the child’s existence, so this is critical to work out if you plan to have and parent the baby. You should also talk to the father of the baby, even though you two are no longer together - there are various ways this co-parenting relationship could go, and you need to figure out what’s best for everyone involved. Consider seeing a therapist who specializes in co-parenting and “unconventionall” families.
I have no idea what your values and preferences are around pregnancy and abortion, but know that you do have options, and that they are your choices. There are two other people involved who are likely going to have strong feelings about the pregnancy, and they are entitled to those strong feelings, and it is healthy for you to consider and discuss them - but, ultimately, it’s your pregnancy. If someone wants you to abort, and you don’t want to, they cannot force you, and you should take distance from anyone pressuring you. If someone wants you to keep the baby, and you want to abort, that is your call.
There are a lot of ways this could shake out; here are just a handful that could happen:
Your husband could decide he isn’t up to this, but you want to raise the baby, so you become a single mom
Your husband could decide he does want to raise the baby, and you two become parents, with minimal involvement from biological father
The biological father could decide he wants to be involved, so you work out a multi-parent arrangement that doesn’t require you to be in a romantic relationship
You could decide you don’t want to raise the baby but the biological father does, so he takes full custody after the birth
You could decide to place the baby for adoption
You could choose to terminate the pregnancy
Ultimately, only you can work out what’s going to be best for you, your relationships, and the child. There are professionals who can help you think through those options, so again I strongly recommend visiting a Planned Parenthood, talking to your doctor, or seeing a therapist who specializes in this type of issue. Best of luck!