ADVICE PLEASE!!

Kirsten • Im Kirsten, & I'm a mommy to Jazmyne

My fiancé who's in the military came home on leave 10/25/14..we had sex and it hurt (its been 6 months since we did anything) & then, my period came!! ?

I was so embarrassed :(

Can sex trigger your period?

This has never happened to me before, so I'm not sure as to why I started to bleed..

I do believe its AF though ?

Any advice would be appreciated!