Soooo Confused. False Neg.?

[LovedUpCouple]

last AF: 17th-23rd April.

BD: 26th April

Approx Ovulation:29th April (through feeling cervix, sorry if tmi)

AF due: 15th May

So far, nothing, just done a pregnancy test, BFN
Belly twinges every now and then, but i get really bad cramps and i know when i'm going to come on, and had nothing bad yet; if anything the cramps are different compared to usual. This month we weren't really trying, so i doubted anything would happen, butt the waits on now for something to happen.... be it witch or jellybean...but so farr it looks like AF wont be showing up tomorrow either... i hate not knowing, its the worst part ):

Would this BFN be pretty accurate at this stage or is there a chance that its a false...?

EDIT: i am usually very regular....

 

[lilysmum2]

OMG we are EXACTLY the same dates!!
My AF: 17-13rd april
hehe!! Im late too!!

 

[LovedUpCouple]

Haaaa i no longer feel like i'm on my own xD
We can be late together!

 

[schnoodle]

hmm, i would keep testing with fmu hun x

 

[schnoodle]

good luck hope you get your bfp soon x