Period, ovulation, confusion

Deaushia

So I had my period Jan 1st to about the 7th give or take. Every app I used gives me different ovulation days and says my period is due today. No sign of it AT ALL. I got mild cramps like 10ish days ago and little tings of pain but nothing like a period is coming. Usually i have some kind of warning like severe cramps leading up, vaginal tightening but nothing of any sorts lately. Someone help. Why am i getting 2 periods this month? When was i actually ovulating? And did i slip up my fun weekend and get knocked up 😂😂