Hi stressed

OK so I figured out I had a period in January it was just light and lasted 4days and now I am starting the cycle all over again ttc it took me loging all the way back from November to get everything right bc of depo in December I bleed for a total of 21days with the first week being breakthrough bleeding I had a 31 day cycle first then my body dropped to me bleeding for days this month with 21 days inbetween which is my normal cycle length now I see why I am just now fertile and was having goshes of discharge yesterday clear and needed a paintliner should I have sex on these days? Oh and turns out I only ovulated one day after bleeding which was January 1st

Also I had spotting on the 19 but I chopped it up to be fertile spotting