Ehhh, sakit perut lepas intimate bukan perkara biasa sih, definitely kena check with your doctor sebab bisa jadi banyak reasons, dari kontraksi rahim yang normal sampai ada condition yang perlu attention lah. A few of my mum friends pernah experience gak tapi they all went to see their gynae, so better get it checked out to be safe ya, jangan biarkan je!