Ttc with no postpartum period

I want another baby ;( I’m 11 months pp and still have not gotten a period back- yes I’m nursing and yes baby sleeps thru the night. I know you can get pregnant RIGHT before your first pp period if you ovulate but I’m wondering if it is even possible to get pregnant before then. With my 1st I didn’t get my postpartum period back until 14mo then got pregnant at 15.5 mo. So let’s say I don’t get my period for another 3 months is there even a possibility of getting pregnant or only until those 2 weeks before that first period - we have been trying and it seems pointless - I’m bummed