Could it be that i Had Implatation bleeeding since I had sex on sunday nov 8 And Spotted for 3 days…

Could it be that i Had Implatation bleeeding since I had sex on sunday nov 8 And Spotted for 3 days and then it stoped and now ive beeen cramping ? could it be ? Also this is Wierd but ive been getting acne a lot now Too and I Usally only get it When im about to start my period but i Just had my period about 3 weeks Ago. Or could it be something else ?. Help.