+OPK then 8dpo

Hey everyone so I started my period Dec 12 and it ended on 17. We had sex every other day after up to the 24

I noticed my body temperature rising on Dec 22 and I was getting cramps. I tested positive on a opk although I’m suppose to be ovulating on the first week of January according to the chart

And my period should be mid January

I tested again the next day of Dec 23 and it the line became faint

So I figured my ovulation must of ended

I tested an opk again because my body tempt was rising 98. and got a positive ovulation again Dec 26

I noticed I was bleeding 6dpo

I am currently a week in after my first +opk

I took another

and it tested positive again

What do you think is happening ....

Can you ovulate twice in a month? Or get your period so quickly?