Cramping

I'm 27 weeks 5 days pregnant and have been having increasing cramping the last couple of days. Today after my run I got cramps and have had them almost all day. I have felt my daughter move but just can't get comfortable and not sure what the cramps are? I don't believe it is contractions as they are pretty constant and I'm not doubled over in pain. Just can't get comfortable or get  them to go away. My husband is very worried but I keep telling him I would be in more pain if something was wrong. Anyone else have this or ideas about it?