We are TTC and I began to chart my ovulation. This was more for "fun" as I have no valid concern about my fertility. I started having a regular, very light period with my Mirena IUD in November 2017. I have had it for 7.5 years so this was sort of shock as I have had literally no bleeding with it. Well my "cycle" was 28-30 days on the dot. I got my IUD out on Apirl 30, 2018 as we have decided to TTC. This was cycle day 7. I started using OPK on cycle day 10. I finally got a positive OPK on Wednesday(May 9, 2018) which was cycle day 18. I got the positive OPK at my 6pm testing but not my 10am testing. With that being said our "BD" schedule did not line up.

05/01/18 - neg opk, Successful BD

05/02/18 - neg opk

05/03/18 - neg opk

05/04/18 - neg opk, Successful BD

05/05/18 - neg opk

05/06/18 - neg opk, Successful BD

05/07/17 - neg opk, EW mucus, BD no male orgasm (felt pressured and couldn't "perform")

05/08/17 - neg opk, EW mucus, BD no male orgasm (felt pressured and couldn't "perform")

05/09/17 - POSITIVE opk in PM, EW mucus, BD no male orgasm (felt pressured and couldn't "perform")

05/10/17 - Did not test. EW mucus, Successful BD

05/11/17 - Cramping.

So I guess what my question is, was my fertile window gone this month or is there still a chance? I have had some noticable cramping since Friday, particularly last night.