Achy Pressure

I’m almost 31 weeks and I’ve been feeling dull period like cramping on and off all week. Today it’s turned into more of an achy pressure in the pelvic area. It’s not super painful but def there. I’m assuming this is probably just normal stretching etc at this stage, but wondering if anyone else has experienced this?

(On a side note, the cramping started after some heavy lifting this past Monday. Most of the subway stations in NYC don’t have elevators so I carried 60lbs of stroller & toddler up a total of about 12 flights of stairs 😳)