PREGNANT AGAIN?!

Cassandra
Hello ladies! I am 9 months pp and I stated what seems to be my period at 3 months pp. it wasn't regular and since then it's been weird . Like light and not on time. I breastfed since day one and still do. I'm on the mini pill. I haven't had a period for February. My January cycle lasted longer and I was two weeks almost three weeks late. So I'm not sure what's up. Could it just be my period not being regular yet? Thank you! Currently almost three weeks late again