Abdominal Pains?

Hi friends. I am 19 weeks. Yesterday I was on my feet almost all day long, didn’t get home until midnight. Around the time I got home I started getting a sharp pain in my lower left pelvic area. It was a constant sharp pain for about 20 minutes. I was able to go to bed and wake up fine. Today however (once again on my feet, as I am a Teacher) my stomach is as big as it’s been thus far and so full and hard. I feel very achy today and have a little discomfort still but not the sharp pain consistent. I have read about the ligament stretching. I live in Belize so it’s hard to get accurate doctor help here. Anyone have any insights for me or have experienced anything similar?