I am sorry to hear of your difficult situation and am working on your answer.
You cannot obtain the divorce if you are pregnant typically since MI law requires that you truthfully state that you are not pregnant.
There is a presumption under the law that your spouse is the father. In MI, unlike most states, this is a conclusive presumption and cannot be rebutted by evidence to the contrary. The absurd result is that your husband would typically be named as the legal father of the child.
You and the child's biological father will normally need to file a petition to terminate your husband's parental rights
and adopt the baby after it is born. This is typically the only way for the biological father to replace your husband as the legal father on the birth certificate and any other vital records unfortunately.
Here is a link that summarizes MI law on this issue:
All the best to you.
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