This may be too much info but I don't really know how else to ask?

So I am 12 weeks and 1 day pregnant with child number 2. I have been very constipated maybe only going twice a week for the last 6 weeks. But since 12 weeks hit now I have a light form of dieherra. Is anyone else experiencing this? Or at least something like this?! I don't remember any of this with my first but, she is going to be 8 so I don't really remember much in grave detail about my last pregnancy..