No LH

Hi all, 

I’ve read so much on forums but never posted until now. I’m worried because I have been ttc for 3 months since getting the implant removed. First two months i used cheap opk and now I’ve moved to clear blue dual thormone. on the cb there is a faint second line, but other sites say you should not read this as LH. On the internet cheapies I’ve never seen a second line at all. So now I’m worried I have no LH in my system at all. I’ve also had a flashing smiles for 6 days this cycle, but no solid. Do you think I’m being hasty in thinking i have no LH? Is it possible to have no LH? Thanks in advance x