period delay

So I fractured my foot and they put me on this anti inflammatory(steroid)  medicine and it's like a pak not a bottle. It made my period late like 4 days(I've been 4 days late before) but I stopped taking it today and then I started but it's super light... like super and I'm usually not light ever. It's basically not there and idk if I should be worried or if it's just the medicine that messed me up. Any advice on this ?