My period normally last 5 days, this time it was only 3 days and I had very little if any light pink blood the last 2 days. My husbad had came in me 2 days after my last period in April. Then he did again the day before i started my period on may 13. Now I have had weight gain, my breast are larger, and my stomach feels harder. I get dizzy and feel or have vomited. I took a preg test and it came out neg. Is there still a chance I could be preg?