trying to conceive

8 months ago i had an ectopic pregnancy. me and my bf of 9 months today have been trying recently. and i have had weird periods the past three months. now i have cramping on my left side (my right tube was cuz due to the ectopic) so i only have my left tube to create kids. ive been getting bfn for the past months. even when it seems like implantation bleeding because my periods are so light except for one day my periods bery from 3 to 4 days. af should start in 8 days im hoping this month is the month. i would be 8 months pregnant today.