Am I pregnant my period was on 31st may for four days. I had sex on 21st and 23rd June. I then bled for two days on 5th and 6th July - could this have been implantation bleeding. I will now be 8 weeks+3 if I am pregnant. Apetite gone and I feel sickly for most of the day although no actual sick. I have also bbeen wretching. Smells haven't seemed to bother me. I have been going to the loo a lot and getting VERY dizzy throughout the day. I have also turned quite paranoid and grumpy.. Going over the top and getting very upset and teary. Nipples are sore to touch but boobs are fine. Could I be pregnant?? Or am I just tricking myself ? I took a pregnancy test one week ago and got a bfn..... Is it possible that hcg is just not high enough to detect or........not??? Any answers /views will be appreciated.