Pain during and after bding

Beth • We have been trying to conceive our first child together for 11months (stopped Nuva ring 8/13).
Does anyone else have lower abdominal pain during and/or after having intercourse during their fertile week? I noticed it months ago an am unsure as to what causes it but my lower stomach..under belly button and pelvic area hurt and are sore (inside during sex) and afterwards for a little while..anyone else ever experience this or know what causes it?!