FTM 18 weeks and uncomfortable

Smonet

The past few days my lower abdomen feels heavy, like there is pressure being pushed on it. I want to write it off as normal "growing and stretching" pains but can't help but wonder if this is normal.

I can distinguish the RLPs that accompany it, but just haven't read anything about this pressure sensation. It doesn't hurt as much as it causes discomfort and worry. I have an appointment for my monthly check in on Tuesday so I will ask then, but in the meantime I was hoping for some piece of mind. 

 Thank you!