Help please! Are ovulation tests necessary?

So I live in a smallish city and ovulation tests are outrageously expensive can't find any for under 50 bucks, I would order only but shipping is a lot since I live in the middle of no where in Canada. I picked up a pack last night but am wondering if it's really necessary since my husband and I are in our twenties and usually have sex every night anyways only missing a few days here and there! What do you guys think