Hi ladies TTC NEWBIE HERE!! NEED SOME HELP!!

Hi ladies!!!!!

I am a TTC newbie and.I have a few questions for you! Any advice/answers/comments would be amazinggggg! TIA!

1.) When do you start using OPKs and then when do you test 2x a day with OPKs?

2.) Is cycle day one the first day after your period stops?

3.) If you have used PreSeed has it worked for you or no?

4.) I bought the Sperm Check Fertility at Home Test for Men...... Has anyone's SO taken this at home test? If yes were the results accurate or something else?

If you have ANY advice about anything for TTC please comment!! Thank you so much!