Possible pregnancy?

Gaia

Hi everyone, my husband and I have been TTC for 3 months... Last month I had what I considered a period which I am questioning now though. It lasted only 1 day and a half and was not a lot to be honest but I didn't think much of it. Then the past two weeks I have had the weirdest mood swings, going from super angry to calm to weepy in minutes but again, I didn't think much of it... Now, I have had some stomach cramps and nausea the past three days (if last month that was indeed my period, I should be ovulating this week) and I am now wondering if maybe I mistook implantation bleeding for a period? Could these be symptoms or do I have a stomach bug? 🤣 Thank you in advance for your input!