Pregnancy symptoms

My periods are messed up. I didnt bleed for 8 weeks during june and july, then i bled for 16 days. 3 weeks later i bled for another week. I'm trying to track my cycles now and on cd 26 i started getting the usual period like cramps which i usually get 2 days before... i am now on cd 30 and no sign on my period. No more cramps, but i have started feeling sick, extreamly tired, very water cm and a few more unusual feelings. I took a pregnancy test on friday (monday now) and it came back negative. do you think it would be worth taking another one or just leave it and see whats happening

thanks

[lisas9]

It may be worth seeing a doctor. They can do a blood test which is more reliable and also look into other possibilities for being out of sync. There are many possible causes, so I think it is worth getting checked over.