Lexapro and late period

Britni • Wife💜 Mommy of 2 👧🏼👧🏼

I’ve been taking 10mg Lexapro for about 6 months now. My periods have always been regular and my cycles never more than 28 days long. There has not been any changes in my period until this month. My period is now 3 days late. I took a few pregnancy tests all different brands with red dye and all negative. Could it be affecting my cycles? I’ve read that it can just didn’t think it would be such an abrupt change. Please share your thoughts and if you are going through a similar situation. We aren’t actively trying but not really preventing either. With being late and negative tests I’m leaning more towards it being related to my medication. TIA ❤️😁