Ttc am I pregnant

Malinda • I am 32 married we have 3 live and one miscarried. 11 yrd old girl 10 yr old boy and 4 yr old boy and we misscarried at 11 wk 2 days on oct 9 ,2014
I have been dizzy nauseous and having headaches for 2 days now but took a hpt and they negative