Braxton hicks / real contractions? 38 weeks 1 day

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I can't tell the difference really. All I know is before around the second trimester I had a few Braxton hicks after sex so I kinda know what it feels like but about an hour ago I woke up to tightning all around my stomach along with cramps, the cramps I never felt before with tightning so that's why I feel like it might be the real deal now especially since I started having these "contractions" I noticed what I think is a lot of discharge that comes out watery. It's happens twice in this last hour. I also noticed that every time I get these "contractions" I start to get hot and sweaty. Is that normal????