Early labor?

I need some help this is my first pregnancy and I’m not sure if I’m in early labor or not. Last night I’m pretty sure I lost my mucus plug and it had a tiny bit of blood in it and when I woke up this morning I’ve had mild period like cramps and lower back pain on and off all day. My baby has been moving still but not like he usually does. so I’m just wondering if anyone else thinks I could be in early labor or not?