Discharge

I noticed a few days ago a thick boogery whiteish discharge while showering. I then noticed today once again the same type of discharge while going to the bathroom. I didn't think much of it the first time just that it was odd because I don't usually get that type of discharge especially in a chunk like that. I'll attached a picture. I'm just curious if anyone else has experienced this?

Facts about me: I'm breastfeeding my 18 month old. I'm in a monogamous relationship with my daughters father. With draw method and family planning (including ovulation testing every time we have sex)