Hello everyone. At 4:00 PM I feel like my stomach is on fire. 38 weeks and…

Hello everyone. At 4:00 PM I feel like my stomach is on fire. 38 weeks and 2 days pregnant. Sometimes it gets numb and slightly hurts, went for a shower as recommended, but nothing changed. Started counting how long it takes to get numb, honestly the interval is strange). 9,6,5,8,6,5 minutes, while the pain is the same as during menstruation, bearable. Here I sit thinking if I should go to the hospital or not. Water hasn't receded, the plug is still there. First birth, don't know what to do.