Is labour near ?

I’m a FTM, 37 weeks and have been having some menstrual type cramping and what I think is lightening crotch. Does this mean labour is near? I haven’t lost any mucus plug and I honestly don’t know if I’ve felt Braxton Hicks or not.

I’ve heard lots about what labour may be feel like but being a FTM I’m so unsure and just chalk it all up to “my body must just be getting ready, it’s not labour yet”.