Cramping early?

hey yall,

My first day of my last period was June 22, it last 6(?) days. anyways me and SO had unprotected sex the 25th, 30th and the morning of the 1st. I was having stringy discharge all day yesterday and some today but now I'm cramping. like light annoying cramps.

could this mean anything or could this be something?

this would be baby #4.