hey y’all!! reaching out for support or help here!!:(

so i’ve been abstaining from sex since 2019, but i found this guy and he’s awesome! so, naturally i had sex with him. i had been to my gyno and everything was fine with me since then! my periods were on routine despite me being anemic and having PCOS. but my period was scheduled for monday, 2/22. i felt light cramping but i didn’t get it, no biggie! but i had sex 3 other times this week, but my period never came? i thought having sex was supposed to encourage the period even more so? also now my discharge is a light yellow, started yesterday. could this be the coming of my period? or my body saying “yo, you had sex so...not this month. we’ll try again next time”? or do you guys think it could be something else?