Confused

So this is my 3rd pregnancy with my other 2 I was so bad with sickness I was in out of hospital on drips all the way up untill birth.

This pregnancy I have tried to conceive for 2 years I got my possative around 2 weeks ago. My last period was 1st Aug I do not even feel pregnant no symptoms only sore nipples and I have cramps and back pain every day I really need to see if I can get an appointment to be reasured everythings fine as I haven't managed to get one yet. When I seen the possative I automatically thought right youl be frowing your guts up in no time but nope! Any thoughts???