Always delayed period after giving birth

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Hi everyone. Just wanna get some thoughts and advice. Ever since I started to have my period again after giving birth I noticed its always delayed for like a week, then the following week its gonna come out for 3 days then just spotting the next 3 days. Is anybody else experiencing this? Pls I need some advice what to do. Im a new mother so I dont know about this things. Before my period is always on time, except for when I got pregnant.