16dpo, late period, tender nipples. Etc

Kortney

For the past almost 2 months I've been having unprotected sex 1-3 times a day, he's came inside every time but a handful. About a week ago I had some light spotting for 2-3 days. I am between a day or two late for my expected period, I took a few tests last week and about 2 days ago and they were all negative, could it have been too early ?? What are the chances I could still be pregnant ?