Hi and welcome to BB!
Congratulations on the pregnancy, although sorry to hear you are having such a rough time. I think the worst is not knowing how long it will last, will you be a lucky one that finishes MS at 10 weeks... or will it keep going... Stressful!

I found the best thing for me was taking it easy as tiredness really exacerbated the nausea, but, with another little one to take care of that is not really a possibiliy is it?!!? Still, try to get as much sleep as possible.

Otherwise, nibbles, snacks continuous eating kept the worst of it at bay.

It is also great to try some alternative medicines if you are able. Acupuncture is excellent for reducing nausea. There is a point just on the inside of each wrist that is an anti-nausea point. I have used it with friends who have had food poisoning, hangovers, general nausea and morning sickness and for all of them it has reduced their symptoms.

I say a Chinese Doctor regularly through my early pregnancy this time and the treatments really helped. I also sent a friend along who was suffering with MS and she said that midway through the treatment she began to feel better and began to feel really hungry for the first time in weeks. She dashed off to eat a huge meal after the treatment!!

If you can't get to see someone, (again it is difficult with a little one to look after) you can do acupressure on the points and can by "seabands" at the pharmacy. These are elasiticated bands with little plastic pieces in them which sit over the acupuncture points and keep pressure on them. They are marketed to people who suffer travel or motion sickness (hence the "sea" reference) but are great in pregnancy too. It is a great way to treat MS as it is natural and non-invasive.

You can find the point between the two tendons on the inside of your wrist. It is about 2-3 finger widths down from the wrist crease. Press it moderately for a few mins to see if you feel better. If you google seaband (under google images) or try 'acufinder p6' the first post should show you how to locate it.

Hope that helps!!