Is my black neon tetra pregnant?

I brought two black neon tetras from fishy Business. One is bigger than the other and really fat, you can see that there is light peachy stuff near the gravid spot and the other one I bought is slim and a little smaller.

They are in a 35 litre tank 8.5 gallons with a heater at 84 Farenheit 31 centi grade. Filter is model A 285. 220-240V~50/60H 4.1W the filter has a sponge. No gravel just 7 plants and 3 floating plants. Brightlight bulbb.

here is a photo of google images, this is exactly what my female tetra looks like!

http://www.google.co.uk/imgres?q=black+neon+tetra+female+and+male&um=1&hl= en&sa=N&biw=1440&bih=805&tbm=isch&tbnid=BmGLT4abgi aIkM:&imgrefurl=http://diszhal.info/english/characins/en_Hyphessobrycon_herbertaxelrodi.php&docid=WqkD_j MXCmhhKM&imgurl=http://diszhal.info/halak/Hyphessobrycon_herbertaxelrodi3.jpg&w=275&h=183&ei =rh-BUNXkF4iO0AXAiYGoBw&zoom=1&iact=rc&dur=307&sig=110 493790184500756289&page=4&tbnh=142&tbnw=213&start= 84&ndsp=30&ved=1t:429,r:71,s:0,i:346&tx=139&ty=10 8

Advice would be lovely! Thanks.
They are male and female and the female is full off eggs by the looks of things. Wasnt what i wanted but thanks for the answer ..