Please help, Delayed period?

Tanya • Mother to a 6 year old & TTC baby #2 💜❤️

Hi ladies

This is my 5th round on Letrozole 5mg. During the 4 rounds, my cycles were 30 days.

now I am currently 8 days late on my period and took a home pregnancy test 4 days ago and it came back negative. And Ive been having cramps 😣

Did anyone ever experience this? Or should I wait it out before I contact my Dr.?

Oh and I never passed any blood tests since I started Letrozole