candi44 congratulations and may I suggest a good way of coping is to break the pregnancy down into little milestones. Just taking things a day at at time, eg your first antenatal appointment, then your early scan 2 weeks after, etc.
It is very normal as K999 and dodi have both said, to feel wiped out the first trimester (3 months) as your body adapts to pregnancy. With my first I didn't show for ages and I remember thinking people would think i was exaggerating how tired or sick I felt. On top of that you moved house and changed jobs, you aren't Superwoman, anyone would feel shattered!
When you think about it for centuries women didn't have pregnancy tests, and didn't always realise until much later they were expecting. Lluckily Nature designed us so that tiny and vulnerable as it is, the foetus can also withstand quite a lot, and they're cushioned by our body frame, and think how many babies are conceived over summer holidays and Christmas and New Year, not everyone who gets pregnant has been teetotal or careful with what they eat, yet babies can develop normally.
Your DP (partner) is already showing you concern and being helpful, which is brilliant, of course it takes time to come to terms with you both becoming parents, I expect when you break the news to the grandparents-to-be and other family members and friends they will be excited and enthusiastic. That will probably lift you too.
How did you get on with the mw cazzy84, were you able to tell her how you've been feeling?