Idk if this is ovulation or early pregnancy and I'm scared to take a pregnancy test

I haven't had a period since December I wasn't ttcing because I lost my job in September and I got behind on bills and 2 months ago I got a new job with insurance that covers fertility treatment but u wanted to wait until I worked here for 3 months so I get maternity leave if I get pregnant. A week ago I thought my period would start because I was a little crampy and I have very light spotting for 2 days. The last 3 days I've been having sore boobs back pain and a whole lot of clear stretchy discharge I've been talking lh text and they are increasing but never have I had this much discharge for this long? Is ovulation discharge and early pregnancy discharge similar!?? My husband says he thinks the spotting last week might have been implantation, but I'm not sure