Can you help me, my last period was 27 dec , the period was strange very brown and discharge , and it only lasst for 3 days , January, no period had I test on the 29 jan negative, having sore breast , but negative , on the é feb went to the toilet wiped myself and had a little blood it is now the 4 feb have sore back on one side and still bleeding but its not heavy and a bit like water , could this be implatation bleeding or a am I having a miscarriage or is this my period, also today I felt sick in the morning; thank you for your help;

Firstly there's no way we can tell if you are pregnant, but remember all these signs you are giving can also just mean a period please read this sticky thred on pregnancy.

https://www.askmehelpdesk.com/womens-health/info-answers-frequently-asked-questions-our-health-expert-53865.html#post250355

It could be a late period, or it could be implantation or any number of things. If your back pain is only on one side, that could mean complications(such as an ectopic pregnancy, cysts, or other) or it could be perfectly normal. I think the best advice for you here, is to go see your doctor. They can give you an exam and tell you if they find other determining factors for pregnancy(such as and enlarged uterus,and a blueish purple tint) A blood test can also help determine the presence or absence of pregnancy