When to test?

My only positive opk was Friday after work so I assume ovulation was sometime Saturday.

It should be too soon for me to have any symptoms but I swear I feel different.

I have been having faint cramps all day. My stomach feels like it is stretching, like I can feel muscles moving. I keep sneezing and peeing myself. And I drive to the coast every week (through mountains w/ elevation changes) for the first time in 3 years while driving through I got light headed at the top and as descending.

Does any of this sound like early pregnancy symptoms?