Hi I'm having headaches and vomiting for the last couple of weeks once a week. My upper part of my stomach is hard and bloated. The last time I had sex was the day after Xmas and New Years. The last time I had my period was on the 21th of December little bleeding thought I was off my period on the 25th of December but once I had sex the next day I started bleeding again but that time it was more heavier. I started vomiting on the 26.

Too soon for hard stomach from pregnancy and really the other signs. Possible flu or other illness perhaps.
Does not mean you are not pregnant, but just means you may have other illness also.

Wait till Jan period and see if you get it or not, if you don't get it, wait about 2 weeks to test