could i be pregnant?? help!

Terri

I started bleeding on 2nd and it lasted 3 days instead of 7 (first time ever) and it wasn't as heavy

I have very bad nausea especially after eating

I feel hungover all the time but without drinking

my nipples are purple

and I have white discharge with a little tiny bit of blood

could I be pregnant my husband has low sperm and I don't want to get excited but I have never had these symptoms before

any advice thank you