Heartbroken

Last month we found out my husband has lymphoma and would need to start chemo.. So I immediately stopped taking the pill so we can try before he started chemo (we only had one opportunity) We were overwhelmed with joy when we got a BFP last Tuesday.. This past Monday I started spotting and a lil crampy not to bad so I went to the ER.. They told me my hcg is 22 and it's to early to tell what's going on.. Called my ob who is sending me for repeat hcg on thursday... I just know I'm having a miscarriage cuz I'm still bleeding.. no cramps just every time I go to the bathroom there's watery blood (TMI sorry). This was our first pregnancy.. I can't help but to feel so heartbroken 😢