So ladies I am exclusively breastfeeding I had my baby natural I bled after mayb like like 2wks I…

So ladies I am exclusively breastfeeding I had my baby natural I bled after mayb like like 2wks I wanna say I didn't get it back my period til my baby was about to be 3months he is 4 now but my milk supply did drop the time I wld have my period but now I'm starting to leak again I knw that breastfeeding isn't a full birth control but its something and plus everytime we do do it we use a condom and we don't have sex alot BC I'm just scared u knw like I have 3kids under the age of 5 so I'm scared so I'm asking shld I test or I shld be fine I don't want anymore babies I'm fine with the 3 I have I'm just so scared .... Pls help!!!!