Is it dangerous to have two C-sections back to back?

I had my daughter in January of 2019 and I'm worried about getting pregnant again to soon. She was an emergency C-section. My period last month was super light and weird and my new period is due in 6 days but I haven't felt like myself. I took a test a few days after but it was invaild. My husband and I haven't picked up any protection lately and so he and I have had unprotected sex more than once since then. I'm not as worried about being pregnant.I'm more worried about it being to soon and not sure what will happen to my body.