What does it mean ?

‼️‼️‼️‼️TMI ‼️‼️‼️‼️ I’ve been having sex off and on all week the last time I had sex was lastnight. My hubby and I had sex 3 days on the days I was ovulating . From the app I’m supposed to start my period in 9days ive been cramping in my lower stomach and when I wipe I have brownish pinkish discharge . Do any of you mommy’s know why or ? Is it my body getting ready for my period to come on .?