too soon to know?

Alexis • 21 years old. Married to my favorite airman 💕💕
My husband and I had sex 16 times over the course of 4 days right after I got off my period. I got off my period the 1st and we had sex 2-5. I've taken like 5 pregnancy tests ..all came back negative is it still too early? Period is due 27th...