Uh oh


So I'm not supposed to get my period for another 11 days, I've been judging my ovulation as I would if I hadn't been pregnant. I've been spotting the past couple of days and figured maybe just my period coming early. We've been trying to do birth control around my ovulation schedule (I know not completely accurate) because I've been refused birth control and have 6 month old twins. I've not been able to make ANY appointments for myself as theirs keep me quite busy and in between insurances right now. I haven't even been able to get to my endocrinologist and hoping I dont go into a thyroid storm. Anywho, I'm 6 month PP. what is the likelyhood this could be implantation spotting?