Period has gone MIA

Hey ladies

I wanna share my story and ask questions. The last time I had sex before my period was in October, since then I’ve been through two cycles of periods (October & November).

My December cycle is pretty late.... by four days. Yesterday, (3 days into being late) I had sex & I have still not gotten my period. I also took the morning after pill this morning, because the condom we used split.

I’m just wondering if this is normal. My periods are usually realllllly regular and stay on track. I’m feeling super nauseous, but they said the MAP may do that.