Ed recovery & fertility?

for the past couple years I’ve struggled with anorexia nervous and consequentially a year plus of amenorrhea. I got my period in February for the first time in over a year, lost it in March and April, and have gotten it bimonthly in May and June (July only some brown spotting so far, not blood). I had sex on Saturday night, the condom broke, however I ingested plan B approx 75 minutes after we had sex (I’m also not on any other birth control). I ‘d had brown spotting earlier in the week. The guy is freaking out but I feel like I’m not particularly fertile. Any insight on the topic of fertility in that context of eating disorder recovery would be appreciated :)