Thank you for the additional pictures. It looks like you are scratching at some of the lesions :(
Yes. Hormone changes in your body could very easily be playing a very large part in the formation of these skin lesions.
You could have a systemic viral infection as The Great and Wonderful Dr. Google has mentioned but that is less likely.
While Dr. Google is All Knowing And Wise your best bet is to consult with a Humble Human trained in the Arts of Dermatology so as to get a correct diagnosis and treatment plan.
Does this make sense to you?
And congratulations on the new addition to your family. My oldest daughter is due in 2 weeks with our fourth grandchild.....
Don't forget to mash the positive feedback button for me...the one labeled "excellent" is the most fun to push by far ;)
It's safe for you to press the positive feedback button now if you so desire. And, never fear, even after you press that button I don't go up in a puff of smoke -- I'll still be right here to continue helping you, but, as I do work for tips, I want to make sure you are happy before rating me.
Dr. Rick MD FACS
I wish you the very best.
If you have a chance drop me a note and let me know what the doc (the human one ;) says.