To those cautioning the OP that her husband and relationship will suffer without the 'intimacy' of her husband sexually coercing blow-jobs while she's not feeling great - that's not what intimacy is.
Intimacy sounds something like this -
Husband to wife who's not feeling great:
'How are you feeling? Can I get you anything? Is there anything I can do for you to help you feel more comfortable?'
More specifically, intimacy looks like any or all of this -
Husband to wife who's not feeling great:
'I'll cook the dinner, do the dishes, do the cleaning, do the ironing. I'll look after the kids, take the kids out, put the kids to bed. I'll make the packed lunches, do the school run. I'll organise the play dates, ferry them to and fro. I'll call the nursery, school, doctor, dentist, optician, bank, council. Would you like me to rub your back, shoulders, feet, run you a bath? Don't worry, I've already put the blood-soaked knickers, leggings, sheets into a cold soak, and remade the bed. Can I get you a cushion, blanket, hot water bottle? I'm just going out to get you some more painkillers, tampons, pads, red wine, chocolate. Is there anything else you need? I'm worried about your periods, their effect on you, do you think it's worth checking with a doctor?'
That's intimacy, care, love.
Horrified and infuriated in equal measure by the abusive behaviours women are encouraged to settle for in relationship!