Help ! My doctor wants me to do methotrexate

L

13hcg Jan 21 12dpo

14.3 progesterone

37 hcg Jan 24 15dpo

182 estradiol

11.1 progesterone

80 17dpo

10.1 progesterone

184 19dpo

174 estradiol

16.1 progesterone

487 21dpo

13.5 progesterone

1289 feb 5 (6 days later)

16.5 progesterone

So on my last appointment they apparently seen a “small sac” at 1289 hcg we’ll I went back today 2 days later and they gave me that number 1289 and said it’s 40 points off being “normal” level. And that nothing was seen on the ultrasound (lady literally took 2 mins if that to do it) they pushed methotrexate on me (nothing showing in tube btw) and told me after that to schedule a D&C. I declined and asked for another hcg blood test. I should be 6 weeks 3 days as of today going by LMP. I have had no spotting or bleeding and FEEL pregnant. Why did they see a sac last time and say oh maybe the pregnancy isn’t progressing properly but now nothing? I’m left scratching my head. Same doctors office, same ultrasound tech. Any input ladies ??