Now my husband will sometimes not being tmi sorry but if he puts his fingers in me he says that it's feels swollen when he pushed upwards but what does mean?

Yes, when your ovulating, your cervix should be S.H.O.W. meaning soft, high, open, and wet. Your cervical mucus(cm) should change from being dry/ creamy from when you get off your period to stretchy, slippery, clear.

Yes you are correct. Some women do a basal temperature check. Ive never tried it. Maybe that can help you. Good luck!