Letzrazole cycle I had a normal period taken all of letzrazole now cycle day 8 confused

[Dachshund1]

I'm on cycle day 8 now and I had a full period is why I started a new month cycle of letzrazole, but I'm still brown spotting on cycle day 8 and still little very faint pregnancy test strips is this normal ? This is month 4 for me using letzrazole thank you , x

I have never had a prolonged period like this , and I'm not due for 21 day bloods as is way to early just don't understand the spotting and faint pregnancy test strips , I'm thinking maybe just the medication this time , any information would be great fully appreciated thank you x