I'm 24 Year Old And I Have Gave Birth To

I'm 24 year old and I have gave birth to my daugther 7 23 2015 I was spouse to wait to have sex but I didn't wait and my boyfriend bust my switch open and than I have had problems with tight I was wondering what I could do .my vigina hurt after sex and some times hurt when I have sex I know we're both clean and don't have a stds but my vigina hurt when I close my legs and sit down I it hurt where the open is were the bone is