Possible implantation dip?

I’m only on my second cycle tracking and not sure what’s going on. Wasn’t able to confirm ovulation, so honestly didn’t give any thought to possibly being pregnant, but then this morning I have a massive dip… obviously I only have my last cycle to compare to and I know it’s not a for sure sign, but anyone have any thoughts or similar experiences? How did things end up for you? I also had sick kids and felt super gross all last week, so not sure if that affected my temps/ovulation at all. Pics of both cycles 🤷‍♀️