Early labour contractions?

I’m 41 weeks tomorrow and haven’t been having any signs of labour but for the past 2 hours I’ve been getting a kind of sharp/tight pain at the bottom of my stomach every 20 ish minutes for like a minute long each time and I’m wondering if this could be labour slowly starting? When I google about contractions it says they start at the top of the stomach or lower back but i’ve never had braxton hicks or pains or anything on those places and these pains I’m getting now are just at the bottom of my tummy so I’m wondering if it could be labour starting or just nothing really. Any idea?