Feeling sad

I am in my 19 weeks but I cannot understand myself why I feel so sad and down that I just want to cry especially at the end of the day. I try to be busy during the day, cooking, watching and helping my eldest with her online classes. It has been 12 years since my eldest was born and bein pregnant now is very difficult for me. I admit I am scared because my husband lost his job as a seafarer in a cruise ship and we have no income for almost 6 months. But I get the overwhelming sadness that I can't stop myself but cry. I am so frustrated and confused.. ##advicepls #sadpregnancy