I'm 23 I already have a child who is 5 nearly 6 me and my husband have been trying for 4 years for #2 but haven't had any luck , my af is due on the 8th March 2016 .... but since 27th February I had strong lower pains like I was about to come on af , but 28th and 29th they've come and gone but really light are these bfp pains or implantation? Xx