ttc after depo

Ka

my last and first depo shot was july 2018 and then started bc pills august-september and then stopped taking them. me and my bf have been trying since nov. 2018 i was having 2 period a month sept-december and then in january my period came regularly ( 8 days ) and this month i spotted around the time i was suppose to ovulate and then got my period for 3 days. Im not sure id im ovulating is there anyway i can tell ? i dont ever get the “ egg white stretchy “ cm