slight pain on one side?!

Daisy
Hi girls, I'm 4 weeks 4 days and over the last two days i have noticed a sharpish pain on my right side, it's very very mild and can only really feel it if I move a certain way or if I cough really hard, I'm concerned because one sided pain is usually associated with an eptopic. Has anybody experienced this and had a perfectly healthy pregnancy? Trying to reassure myself.