Hi Sorry From UK Here I Was Just Wondering Is

Hi sorry from UK here i was just wondering is it normal or is there any explaination for why i get pain/discomfort in my lower stomach after foreplay... I am not a Virgin and i am 30 years old and have a child i havent had sex in 7 months and has only recently (the last 2 weeks) ive been having foreplay with my partner finger pentration and clit stimulation either by my partner or vibrator... It seems to be the last couple of times we have had foreplay that the discomfort/pain happens after and lasts for 2/3 hours after..... Could there be something wrong..