Pain during sex

Hey guys okay so sometimes while I'm have sex if we're doing it for long my vagina starts to get irritated like I get kinda this stinging feeling like a carpet burn Also when he goes grime behind I feel this sharp pain in like my lower abdomen like my stomach it'll go away sometimes but other times I just hurts wore. I did get an abortion and this pain didn't start happening till after I go it done. I'm just wondering if these things are something I should be worried about and go see a doctor or if I'll be okay?