Weird discharge.

Recently, my discharge has been so weird. A week ago it was a soft pink color and then went back to normal and clear. Today, it's a deep red and there's quite a bit of it. I don't have and pains and it doesn't smell unpleasant. I recently got into a relationship and I've been very up front with my boyfriend about what's been going on, but I'm not entirely sure what it could be.. Thoughts?