Water leaking?

I’ve had this watery discharge all day today. Minor lower back cramps, and just feeling “off”. Any opinions on whether this looks like just discharge or amniotic fluid? It smells pretty sweet, and nothing like urine. That’s my main reason for concern. I’m calling the doctor in the morning, I’m just looking for anyone with a similar situation. I’m 30weeks1day. At my last ultrasound baby was very low in my pelvis, if that makes a difference. My normal discharge for this pregnancy has usually been white/creamy. This makes baby #4 for me, but I’ve never got to experience the water breaking or labor part of pregnancy due to cesarean sections. I’ve changed underwear 3 times today before breaking down and just using a pad. Thanks for any help!