21 DPO no period, bfn can I be pregnant???

Cassie
I had my last period January 8th-15th and haven't had one since. I was supposed to get it February 8th as my periods are always early but never late. My boyfriend and I had unprotected sex January 21,22,23 and he ejaculated inside over 6 times. I am not on birth control and have been having symptoms but all the tests I've taken have been negative. I have not taken one since Saturday. Should I try again Incase my hcg
​Hormones are not strong enough yet?