Stronger than Braxton's

Brittney
I'm 36+5 and today since 11 I've had some pretty crappy contractions back to back. They go away for about 30 minutes and then kick back up. Dr said to not start timing until they are unbearable. (On the day my husband goes out of town for work lol) 
Anyone else experiencing constant contractions? I'm not sure if this is normal or if I should be timing them because when they are unbearable, isn't that a little too late to take a shower and warn my husband to come home? (Went to the dr Friday and wasn't dilated)