To work or not to?

Hi mummies, do u feel if this company is reliable? I used to have a full time job for many years but have since been jobless for a year plus due to caring for my baby and now pregnant with 2nd one going 6 months..when I didn't know I'm pregnant my response for interviews are pretty good. Now no companies would want to hire as I'm in mid pregnancy. However there is this agency that says they are willing to employ me even though I'm pregnant and after discussion through whatsapp I've decided to take on the part time role as it suits my current lifestyle so that I can have time to care for my toddler after his school. Thing is this agency told me twice they are going to call me for a phone interview but also put my aeroplane twice. For the first time, I msged and asked if they are still hiring and say yes and will rearrange. But everything takes very long since I got to know this person..around 2 months now and not confirm. Recently said want to hire me and then again did not call me. I think for a business this behaviour is not reliable. The reason they gave previously is that their family fell sick and husband busy with work. The agency is owned by the husband btw. Should I trust this agency? The husband asks me to start work on a certain date, says calling me at this date and time for a phone interview but did not manage to do so again. Should I work for such agency? The reason for me to get a job is to secure the working mum subsidy for my toddler sch fees. I've calculated my finance and can still be jobless for till end of this year as I'm currently pregnant and able to get the special additional subsidy for my toddler sch fees..just worry about next year sch fees unless i can get a full time job in Jan. Should i work for this agency 1st? #pleasehelp