Weird periods past three months

Has anyone else noticed a big change in their periods over the past few months? We moved to a safer place to stay since COVID lockdown began and I’ve been stressed, but I’m also turning 37 in July. TTC #2 since March and since then my periods have started SUPER light, like spotting, and then turn into a normal period around day 3. They used to start heavy every time. I don’t know if it’s peri-menopause causing this or stress. When I was 33 we also conceived the first time we tried. It’s getting a little concerning. Anyone else in the same boat?