Help me glow Mamas! Timing Contractions

Angie • Married & pregnant with baby #2 expecting our beautiful baby girl August 21!
So I'm having contractions!!! They are all over the place though. I go from 15 min to 7 to 5 to 7 back to 15 then to 2 min. Doesn't make sense. But they are getting strong as hell and I can feel it in front & in my back 😖 when should I call dr?? Should I wait until it's a steady 5 min or less apart??