Recently diagnosed and recently pregnant

Hello, I was diagnosed a couple of days ago with RRMS. I was prepared for this as having my first episode of optic neuritis and subsequently an MRI that showed lesions was a strong indicator this was to be the outcome. My questions is to anybody that can relate is, is extreme exhaustion / fatigue something that lasts for around two weeks like any other symptom related to MS does or is it more of a constant symptom?? I have no idea whether what I’m feeling is related to MS or being in my first trimester. I’m aware you can get tired in pregnancy and to some extent I was with my first son but nothing on a scale like I’m feeling now. I’m anxious , worried and stressed because I have already had to stop working and I am self employed so no income at all at the moment and an 18 month old to look after. I struggle to get up and do normal tasks. I just need to see light at the end of the tunnel and know this isn’t forever. Be very grateful for any advice xx