Feeling like iv pulled a muscle 22.6 weeks

Qayah
2 nights ago I had to go to the after hours doctors, after suffering all day with pains in my right side, it felt as if something was pulling and then stabbing abit like how a stitch was feel after you have been running for a long time... The doc said everything was fine but I'm still getting the pulling feeling every now and again mainly when I'm walking or standing 
Has anyone else experienced this and is this normal??? I'm abit worried