Possibly pregnant? Ovulation test question.

Michala

All right ladies! I was estimated to ovulate about 7 to 10 days ago. I suspect it was early because on the days my app told me to take an ovulation test it was not positive, it was a line but not a bold line! Now, a week later, I am getting a pretty decent line on an ovulation test. Do any of you guys have experience with having a positive ovulation test as a sign that you could be pregnant? My period is due in about four days. Should I go out and buy a pregnancy test?