First cycle on metformin

Hey y’all, this was my first cycle taking metformin, 500 MG daily.

Period was due to start today, she has yet to show. I’m like clock work, always right on time.

I took 3 cheap amazon strip test yesterday , and all had a VVFL but looked like indent lines to me..

Going to retest tomorrow with a better test & hoping it’s a BFP.. but I’m scared the metformin has just messed with my cycle 😢

Has metformin messed with your cycles ? Please give me input , thanks y’all ❣️❣️