My unusual implantation bleed

Me and my boyfriend were pretty certain I was having a miscarriage,I bled for 8 days but without any pain we thought to do some pregnancy tests we were hopeful they would come back positive we did 2 and both negative.We were so distraught and upset over it but strangely enough about 3 weeks later I thought to give it one last try and it became positive and now half way through the pregnancy with a healthy baby.

So dont worrg if that test isnt positive straight away it may take some time.