I want to stress that this community is awesome and supportive. However we are not doctors. Every pregnancy is different and just because something was considered normal for one person doesn't mean it is normal for you. It is great to get other opinions here but you also need to mention what you are experiencing to your doctor or midwife

There are a lot of signs of preterm labor, cervical insufficiently, infections and other complications that mimic normal pregnancy symptoms. You don't always have bleeding or cramping as warning signs. Only your doctor can assess what is normal or not.