Can we still have unprotected sex (with ejaculation) while pregnant?

I know male ejaculate can soften the cervix and therefore can help late in pregnancy to induce... but should that be something I worry about now? I really feel like my baby stays super low I'm 21 weeks and havent felt movement above my belly button... and I'm not really showing at all... would it still be okay? I will ask my midwife at our next appointment but that's in 2 weeks. No one has checked my cervix this entire pregnancy OBGYN or midwife...

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