PLEASE HELP ME!!! So confused 😣😣

Marie • Diagnosed with PCOS. Boy mom to a 1 year old, pregnant with baby #2 🥰
Ladies I feel like I'm going crazy!!
I came off the pill the 15th of August and got my period 2 days later (17th) and it lasted till the 21st but on the 22nd when I had intercourse I bled again for like another day.
I've been off the pill since and was supposed to get my period on the 14th this month but it hasn't happened... And I don't think I'm pregnant because I've been pregnant before (miscarriage) and I had really sore breasts and now I feel nothing..
Is this normal?? Or what's happening here?? Please help me I'm going crazy!!Â