Nausea

I’m 7 weeks 3 days. The nausea is terrible and lasts ALL FREAKIN DAY!!! My Dr prescribed me unisom and b6. I have been taking that for about a week now and it’s not helping at all. On top of that I’m so constipated that I can’t even stand up straight because of the stabbing pains. What can I do to get through this? This is my third pregnancy. I have two kiddos and a household to keep up with and I’m not able to accomplish anything or be the mom I need to be I’m so desperate for relief 😭