Am I pregnant?

Hi everybody😁 My husband and I have been trying to conceive for the past month or so. I've been off the pill now for 3 months. My husband and I had intercourse twice during my fertile window. Once before ovulation and we used the withdrawal method and once on the day of ovulation with no withdrawal. This was 5 days ago and I am feeling mildly nauseous, I have a tingling/crampy feeling in my lower abdomen and I'm just feeling 'pregnant'. My period is only due in 1 and a half weeks. I took a pregnancy test this morning but it was negative. Could I be pregnant??