Early labor transition to active labor?

I’ve been having consistent contractions 3-4 minutes apart since yesterday. Lasted all night last night and couldn’t sleep at all. Now I’m having more intense contractions that I can feel in my thighs and through my abdomen, like the worst period cramps I’ve ever felt!! But these are more spread out now around 5-7 min apart. They cause me to stop walking because of the sharp pain i feel.

I’m afraid to call doctor because I’ve already had two false alarms the past week with contractions that were 3-5 min apart but i wasn’t dilating so i got sent home.

Anyone have any experience transitioning from early labor pain to actual active labor? What stuck out to you the most? Was the pain unbearable? I’m just so confused 🤦🏼‍♀️