hi sunshine sounds fine, cilest has a 12 hour window so as long as its always been within this it will be ok. hopefully you've taken them all within roughly the same time? as if you take it at very variable times it gets confusing - there's no benchmark for when the 12 hours starts and finishes and i guess this could put you at more risk! Also if you're bf you are probably not ovulating, although dont rely on this, its just a nice backup.
xx