Random ?

I am 20 weeks pregnant...Random post I guess, but I woke up this morning with horrible side pain. I couldn't lay, sit, or stand. I thought maybe getting in the shower would help, but it didn't really do much good. I think it was round ligament pain, but it was on the left side and everyone says that is almost on your right side. After I got out of the shower I tried laying down, but found sitting on the sofa was the easiest. At that point it turned into what I call muscle spasms. All together the pain lasted about 30 minutes. Anyone else have this pain? I thought if it moved into my stomach I would call the doctor but it didn't...