Am I in Labour?

🇨🇦Callie🇨🇦 • Pregnant with Baby #2
Hey Ladies,
I'm 39+4, and as of 3 days ago was 100% effaced, 2 cm dilated, and baby was at +1. Mucus if came out 4 days ago. 24 hours ago, what I think are contractions began (feel like waves of strong period cramps) but remained at 30sec/15min all day long. Today they are 45sec/12min...a little stronger, much much stronger when I'm walking. I thought it was labour yesterday, but today I'm not sure because of how long it's latest without switching into high gear. 
What do you think?

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