has anyone experience this before

sandra
so according to my <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> im supposed to be ovulating my period was on the 04/03/17. but since friday my utures been hurting badly yesturday i had sex with my bf and let me tell it hurted so badly i felt like it was the first time i ever had sex. i felt really tight down there and it was really painful. idk why it hurts like that today i have little to no pain at all. should i worry about this.😰