Prep prep

In need of some baby dust :) I started taking prep prep pills last month and I don't know how long they take to work but I hope they work fast :).
 So here's my story and give me your take.  I'm 34 about the be 35 next month :S was in a severe accident 4 years ago, so I'm technically disabled :S I was diagnosed with a tramatic brain injury which for the most part does not affect my fertility I believe :) I've been happily married for the last 4 years as well :). The accident happened 6 weeks after the wedding :S off and on for the last 2 years I have been trying to concieve :S but I figured I need to hit it hard now :S I've even gone to go see a fertility specialist and he told me what he thought was wrong :S. Not ovaulating enough eggs and the sperm having sperm morphology  which affects their motility and ability to fertilize the egg :S so they HAVE been gun ho about <a href="https://glowing.com/glow-fertility-program">IVF</a>. So, I decided to at least give it until my birthday before I invest more money :S so, I'm currently weighing my options :) does anyone now how long it takes for the pills to kick in?  I just had my period but it was different :S I'm assuming it's probably because of the pills :S. SO, I forgot to mention this but I had polyps removed in December 2013 and nothing and then had a small one removed June 2015.  So that is another problem to take into consideration :S So back to my period story and why it was different to me :S before the initial polyp removal I had severe cramps :S I haven't really had anything since then, but then this past Friday when my period paid be a visit so did my cramps for like an hour and it was BAD :S I bleed lightly on Friday, then again on Saturday. When I say lightly I mean change my tampoon every like 6 hours and it was heavy enough where it needed to be changed :S. Sunday, nothing :S SO overall cramping and 2.5 days of bleeding :S I also got my period late :S I'm a 25/26 day girl and this time it was 29 days :S so, before it hit I took a pregnancy test and it came back negative :S I just don't know if I took it too soon or what :S. 
So, overall this us my story :S a girl in need of baby dust :) A girl with a history if polyup removal, taking pregprep,with a change noted in her last cycle and a negative pregnancy test.  
Please give be your thoughts :) baby dust to everyone :)