So my last period was January 11th, we are almost sure I ovulated on the 25th, but then I remembered I had fertile cm around the 7th of this month

Jj

If I did ovulate on the 7th of this month, when would my period start? Asking cause going by my ovulation on the 25th my period is 3 days late now, and I have yet to even spot or anything, I took a test and it’s negative. I’m just so confused, I have 29 day cycles