Anybody else

I had a baby in December and since then my periods have been all over the place which I kinda expected but I feel like it’s a concern now. I have been getting two periods a month for about 3 months and I don’t know why. My periods will start and end on time but then 4 days later they start all over again. I’m so desperate for answers I’m thinking about getting back on birth control even though I hate it. I do have PCOS but I don’t think thats related to this. Anybody else like me?