i am pregnant ?

im 3 days delayed 3 weeks ago after i have an sex intercourse to my bf i am so confused I'll go many times in toilet and pee my stomach feel so little bump like im pregnant and i feel so tired i dont know if i am pregnant or over thinking and whne we have sex intercourse i am ovulate 27% high risk getting pregnant my mucus like egg white sticky please i need your comment when I'll take pregnancy test kit.?