Can anyone help ?!

Le
Okay so I usually have 6-7 day periods . I always get cramps a few days before . Then the first 2 days . Then it goes away . 
However , this month . 
I thought we hit the right spot at the right time . But right before AF I got an infection in my kidneys & was in the hospital for 5 days . And was on antibiotics . So I started AF a day early . Which isn't too strange . Then I had a light period . Not even a whole 4 days . The last day was like light pink but creamyish (sorry tmi , yuck) . Then it was gone . Before dinner on day 4. 
And since about a week before AF and still now I have period like cramps that make me think when I go to pee she will be back . But she isn't . 
It's just so strange . 
What could it be . I'm only on cycle day 6 . Which usually I would just be nearing the end of AF now but it's been 2 days . 
Any advice ? Or stories ?

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